Sub-band full duplex in frequency division duplex bands

Abstract

Methods, systems, and devices for wireless communication are described. For example, the operator may utilize a duplex gap as a second downlink channel of the operator with an uplink channel proximate to the guard. The operator may utilize the duplex gap as a second uplink channel of the operator having the downlink channel proximate to the guard. In some examples, a new chunk may be added for an operator (e.g., a first operator, a second operator, or a third and different operator). The new block may include an uplink channel and a downlink channel (which are adjacent to respective uplink and downlink channels of other operators, thus avoiding additional interference). For example, a new block may be added for an operator (e.g., a first operator, a second operator, or a third and different operator), which may be subdivided in time, frequency, or both.

Description

[0001] Cross-references

[0002] This patent application claims priority to U.S. patent application No. 17 / 956,375, filed by Abdelghaffar et al. on September 29, 2022, entitled “SUBBAND ​​FULL DUPLEXING IN FREQUENCY DIVISION DUPLEXING BANDS,” which is assigned to the assignee of this application and is expressly incorporated herein by reference. Technical Field

[0003] The following relates to wireless communications including sub-band full duplex (SBFD) in frequency division duplex (FDD) bands. Background Art

[0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, and the like. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems) and fifth generation (5G) systems (which may be referred to as new radio (NR) systems). These systems may employ techniques such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations, each of which supports wireless communications for communication devices, which may be referred to as user equipment (UE). Summary of the invention

[0005] The described technology relates to improved methods, systems, devices and apparatuses for supporting sub-band full duplex (SBFD) in frequency division duplex (FDD) bands. In some examples, an operator may utilize a duplex gap as a second downlink channel for an operator having an uplink channel associated with a protection element (e.g., adjacent to a protection element). In some examples, an operator may utilize a duplex gap as a second uplink channel for an operator having a downlink channel associated with a protection element (e.g., adjacent to a protection element). In some examples, a new block may be added for an operator (e.g., a first operator, a second operator, a third operator). A new block may be associated with a new block channel and may include an uplink channel and / or a downlink channel (which may be adjacent to corresponding uplink and downlink channels of other operators, thereby avoiding additional interference). A gap may also be added to a new block channel. In some examples, a new block may be added for an operator (e.g., a first operator, a second operator, a third operator), which may be subdivided in time, frequency, or both. Portions of the subdivided blocks may be allocated to one or more different operators (eg, a first operator may use a portion of the new block for signaling such as downlink or uplink signaling and may leave the remainder of the new block unused for another operator or as a guard).

[0006] A method of wireless communication at a network entity is described. The method may include: selecting a duplex gap between a set of multiple uplink channels in a first portion of a full-duplex frequency band and a set of multiple downlink channels in a second portion of the full-duplex frequency band, the duplex gap including one or more unoccupied frequency resources between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels; determining one or more rules for sub-band full-duplex (SBFD) signaling communicated to one or more user equipment (UE) via the duplex gap; and performing wireless communication with the one or more UEs via the duplex gap according to the SBFD mode and based on the one or more rules.

[0007] An apparatus for wireless communication at a network entity is described. The apparatus may include: a processor; a memory coupled to the processor; and instructions stored in the memory. The instructions may be executed by the processor to cause the apparatus to: select a duplex gap between a set of multiple uplink channels in a first portion of a full-duplex frequency band and a set of multiple downlink channels in a second portion of the full-duplex frequency band, the duplex gap including one or more unoccupied frequency resources between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels; determine one or more rules for SBFD signaling communicated to one or more user equipment (UE) via the duplex gap; and perform wireless communication with one or more UEs via the duplex gap according to a SFBD mode and based on the one or more rules.

[0008] Another apparatus for wireless communication at a network entity is described. The apparatus may include: means for selecting a duplex gap located between a set of multiple uplink channels in a first portion of a full duplex frequency band and a set of multiple downlink channels in a second portion of the full duplex frequency band, the duplex gap including one or more unoccupied frequency resources located between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels; means for determining one or more rules for SBFD signaling communicated to one or more user equipment (UE) via the duplex gap; and means for performing wireless communication with the one or more UEs via the duplex gap according to the SBFD mode and based on the one or more rules.

[0009] A non-transitory computer-readable medium storing code for wireless communication at a network entity is described. The code may include instructions executable by a processor to perform the following operations: select a duplex gap located between a set of multiple uplink channels in a first portion of a full-duplex frequency band and a set of multiple downlink channels in a second portion of the full-duplex frequency band, the duplex gap including one or more unoccupied frequency resources located between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels; determine one or more rules for SBFD signaling communicated to one or more user equipment (UE) via the duplex gap; and perform wireless communication with the one or more UEs via the duplex gap according to the SBFD mode and based on the one or more rules.

[0010] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for selecting a block channel associated with a first operator, the block channel comprising a first uplink channel in the set of multiple uplink channels, a first downlink channel in the set of multiple downlink channels, and a duplex gap, wherein performing wireless communication via at least the duplex gap comprises performing wireless communication via the block channel.

[0011] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing wireless communications may include operations, features, components, or instructions for sending downlink signaling via a duplex gap, the duplex gap including a second downlink channel of a block channel according to one or more rules, wherein the first uplink channel may be adjacent to the duplex gap.

[0012] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing wireless communications may include operations, features, components, or instructions for receiving uplink signaling via a duplex gap, the duplex gap including a second uplink channel of a block channel according to one or more rules, wherein the first downlink channel may be adjacent to the duplex gap.

[0013] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing wireless communications may include operations, features, components, or instructions for performing wireless communications based on a transmit threshold.

[0014] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for avoiding wireless communications via a guard band located in a portion of a duplex gap.

[0015] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for selecting a block channel associated with a first operator, the block channel comprising a first portion of a duplex slot allocated for uplink signaling and a second portion of a duplex slot allocated for downlink signaling, wherein performing wireless communication via at least the duplex slot comprises performing wireless communication via the block channel.

[0016] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, a first portion of the duplex gap may be adjacent to a first uplink channel in the set of multiple uplink channels that may be associated with a second operator according to one or more rules, and a second portion of the duplex gap may be adjacent to a first downlink channel in the set of multiple downlink channels that may be associated with a third operator according to one or more rules.

[0017] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for avoiding wireless communications via a guard band located between a first portion of a duplex gap and a second portion of a duplex gap.

[0018] Some examples of the methods, apparatus, and non-transitory computer-readable media described herein may also include operations, features, components, or instructions for selecting a block channel associated with a first operator, the block channel comprising a first portion of a duplex gap allocated for uplink signaling and a second portion of the duplex gap allocated for downlink signaling, wherein performing wireless communication via at least the duplex gap comprises performing wireless communication via the first portion of the duplex gap or the second portion of the duplex gap based on one or more rules.

[0019] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing wireless communications may include operations, features, components, or instructions for: performing downlink signaling via a second portion of a duplex gap, wherein the second portion of the duplex gap may be adjacent to a first downlink channel in the group of multiple downlink channels that may be associated with a first operator, and wherein the first portion of the duplex gap may be adjacent to a first uplink channel in the group of multiple uplink channels that may be associated with a second operator; and avoiding performing uplink signaling via the first portion of the duplex gap based on one or more rules.

[0020] In some examples of the methods, apparatus, and non-transitory computer-readable media described herein, performing wireless communications may include operations, features, components, or instructions for: performing uplink signaling via a first portion of a duplex gap, wherein the first portion of the duplex gap may be adjacent to a first uplink channel in the group of multiple uplink channels that may be associated with a first operator, and wherein a second portion of the duplex gap may be adjacent to a first downlink channel in the group of multiple downlink channels that may be associated with a second operator; and avoiding performing downlink signaling via the second portion of the duplex gap based on one or more rules. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 An example of a wireless communication system supporting sub-band full duplex (SBFD) in a frequency division duplex (FDD) band according to one or more aspects of the present disclosure is illustrated.

[0022] Figure 2 An example of a wireless communication system supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated.

[0023] Figure 3An example of a wireless communication system supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated.

[0024] Figure 4 An example of a wireless communication system supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated.

[0025] Figure 5 An example of a wireless communication system supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated.

[0026] Figure 6 An example of a wireless communication system supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated.

[0027] Figure 7 An example of a wireless communication system supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated.

[0028] Figure 8 An example of a process flow for supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated.

[0029] Fig. 9 and Fig.10 A block diagram of a device supporting SBFD in an FDD band according to one or more aspects of the present disclosure is shown.

[0030] Fig.11 A block diagram of a communication manager supporting SBFD in an FDD band is shown according to one or more aspects of the present disclosure.

[0031] Fig.12 A diagram of a system including a device supporting SBFD in an FDD band according to one or more aspects of the present disclosure is shown.

[0032] Figures 13 to 16 A flow chart illustrating a method of supporting SBFD in an FDD band according to one or more aspects of the present disclosure is shown. DETAILED DESCRIPTION

[0033] In some examples, network entities and user equipment (UE) may operate in a frequency division duplex (FDD) band (e.g., a low spectrum band) including block channels (e.g., multiple channels, including uplink channels and downlink channels that are aggregated together into a single block channel). Each operator may be assigned a block channel including one uplink channel and one downlink channel, wherein the downlink channel and the uplink channel (e.g., seven uplink channels and seven downlink channels) may be separated by a duplex gap (e.g., 652 MHz to 663 MHz in a 600 MHz band). A duplex gap is a subset of frequency resources located between an uplink channel and a downlink channel, and may support uplink signaling by one operator adjacent to the duplex gap and downlink signaling by another operator adjacent to the duplex gap without interference. However, in some examples, resources of the duplex gap may remain unused and may be wider than necessary to provide sufficient duplex gaps, resulting in reduced throughput and less efficient use of available system resources. A wireless device (e.g., a network entity, an access point, etc.) may be capable of a sub-band full duplex (SBFD) technique that may support full-duplex signaling within a single channel or sub-band (e.g., without causing increased interference to the sub-band or channel). Such SBFD techniques may support the use of duplex gaps. However, in other different wireless communication systems, the use of duplex gaps by one operator may cause interference to another operator in another channel.

[0034] The techniques described herein describe rules and use case scenarios where one operator can more efficiently utilize a duplex gap without causing interference to another operator. In some examples, an operator can utilize a duplex gap as a second downlink channel for an operator with an uplink channel adjacent to a guard. In some examples, an operator can use a three-channel block channel (e.g., an uplink channel, a downlink channel, and a second downlink channel in a duplex gap). Interference from the second downlink channel to an adjacent uplink channel of the same operator is resolved via SBFD techniques. Additional gaps may also be applied to a duplex gap or an adjacent downlink channel.

[0035] In some examples, an operator may utilize a duplex gap as a second uplink channel of the operator with a downlink channel adjacent to a guard. In some examples, an operator may use a three-channel block channel (e.g., an uplink channel, a downlink channel, and a second uplink channel in a duplex gap). Interference from the second uplink channel to an adjacent downlink channel of the same operator is resolved via SBFD techniques. Additional gaps may also be applied to the duplex gap or adjacent uplink channels.

[0036] In some examples, a new block may be added for an operator (e.g., a first operator, a second operator, or a third different operator). The new block may include uplink channels and downlink channels that are adjacent to corresponding uplink channels and downlink channels of other operators, thereby avoiding additional interference. Gaps may also be added to the new block channels.

[0037] In some examples, a new block may be added for an operator (e.g., a first operator, a second operator, a third operator), which may be subdivided in time, frequency, or both. Portions of the subdivided block may be allocated to one or more different operators (e.g., a first operator may use a portion of the new block for signaling (such as downlink or uplink signaling) and may keep the remainder of the new block unused for another operator or as a guard).

[0038] Aspects of the present disclosure are first described in the context of wireless communication systems. Aspects of the present disclosure are further illustrated and described by and with reference to wireless communication systems and process flows. Aspects of the present disclosure are further illustrated and described with reference to apparatus diagrams, system diagrams, and flow diagrams related to sub-band full duplex (SBFD) in frequency division duplex (FDD) bands.

[0039] Figure 1 An example of a wireless communication system 100 supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more network entities 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, a New Radio (NR) network, or a network operating according to other systems and radio technologies including future systems and radio technologies not explicitly mentioned herein.

[0040] The network entities 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may include devices in different forms or with different capabilities. In various examples, the network entities 105 may be referred to as network elements, mobility elements, radio access network (RAN) nodes, or network equipment, among other nomenclature. In some examples, the network entities 105 and the UE 115 may communicate wirelessly via one or more communication links 125 (e.g., radio frequency (RF) access links). For example, the network entity 105 may support a coverage area 110 (e.g., a geographic coverage area) within which the UE 115 and the network entity 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area within which the network entity 105 and the UE 115 may support signal communications according to one or more radio access technologies (RATs).

[0041] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile or both stationary and mobile at different times. The UEs 115 may be devices in different forms or with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of supporting communication with various types of devices such as Figure 1 Other UEs 115 or network entities 105 are shown communicating.

[0042] As described herein, a node of the wireless communication system 100 (which may be referred to as a network node or a wireless node) may be a network entity 105 (e.g., any network entity described herein), a UE 115 (e.g., any UE described herein), a network controller, an apparatus, a device, a computing system, one or more components, or another suitable processing entity configured to perform any of the techniques described herein. For example, the node may be a UE 115. As another example, the node may be a network entity 105. As another example, a first node may be configured to communicate with a second node or a third node. In one aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a UE 115. In another aspect of this example, the first node may be a UE 115, the second node may be a network entity 105, and the third node may be a network entity 105. In other aspects of this example, the first node, the second node, and the third node may be different relative to these examples. Similarly, references to UE 115, network entity 105, apparatus, device, computing system, etc. may include disclosure of UE 115, network entity 105, apparatus, device, computing system, etc. as nodes. For example, a disclosure that UE 115 is configured to receive information from network entity 105 also discloses that the first node is configured to receive information from a second node.

[0043] In some examples, the network entities 105 may communicate with the core network 130, or with each other, or both. For example, the network entities 105 may communicate with the core network 130 via one or more backhaul communication links 120 (e.g., according to S1, N2, N3, or other interface protocols). In some examples, the network entities 105 may communicate with each other via the backhaul communication links 120 (e.g., according to X2, Xn, or other interface protocols) directly (e.g., directly between the network entities 105) or indirectly (e.g., via the core network 130). In some examples, the network entities 105 may communicate with each other via the midhaul communication links 162 (e.g., according to the midhaul interface protocol) or the fronthaul communication links 168 (e.g., according to the fronthaul interface protocol) or any combination thereof. The backhaul communication links 120, the midhaul communication links 162, or the fronthaul communication links 168 may be or include one or more wired links (e.g., electrical links, optical fiber links), one or more wireless links (e.g., radio links, wireless optical links), etc. or various combinations thereof. UE 115 may communicate with core network 130 via communication link 155 .

[0044] One or more of the network entities 105 described herein may include or may be referred to as a base station 140 (e.g., a transceiver base station, a radio base station, an NR base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next-generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a 5G NB, a next-generation eNB (ng-eNB), a Home Node B, a Home Evolved Node B, or other suitable terms). In some examples, the network entity 105 (e.g., a base station 140) may be implemented in an aggregated (e.g., monolithic, stand-alone) base station architecture, which may be configured to utilize a protocol stack physically or logically integrated within a single network entity 105 (e.g., a single RAN node, such as a base station 140).

[0045] In some examples, the network entity 105 may be implemented in a disaggregated architecture (e.g., a disaggregated base station architecture, a disaggregated RAN architecture) that may be configured to utilize a protocol stack that is physically or logically distributed between two or more network entities 105, such as an integrated access backhaul (IAB) network, an open RAN (O-RAN) (e.g., a network configuration sponsored by the O-RAN Alliance), or a virtualized RAN (vRAN) (e.g., a cloud RAN (C-RAN)). For example, the network entity 105 may include one or more of the following: a central unit (CU) 160, a distributed unit (DU) 165, a radio unit (RU) 170, a RAN intelligent controller (RIC) 175 (e.g., a near real-time RIC (near RT RIC), a non-real-time RIC (non-RT RIC)), a service management and orchestration (SMO) 180 system, or any combination thereof. The RU 170 may also be referred to as a radio head, a smart radio head, a remote radio head (RRH), a remote radio unit (RRU), or a transmit receive point (TRP). One or more components of the network entity 105 in the decomposed RAN architecture may be co-located, or one or more components of the network entity 105 may be located in distributed locations (e.g., separate physical locations). In some examples, one or more network entities 105 of the decomposed RAN architecture may be implemented as virtual units (e.g., virtual CU (VCU), virtual DU (VDU), virtual RU (VRU)).

[0046] The functional split between CU 160, DU 165, and RU 170 is flexible and may support different functionalities depending on which functions (e.g., network layer functions, protocol layer functions, baseband functions, RF functions, and any combination thereof) are performed at CU 160, DU 165, or RU 170. For example, a functional split of a protocol stack may be employed between CU 160 and DU 165 such that CU 160 may support one or more layers of a protocol stack and DU 165 may support one or more different layers of a protocol stack. In some examples, CU 160 may host higher protocol layer (e.g., layer 3 (L3), layer 2 (L2)) functionality and signaling (e.g., radio resource control (RRC), service data adaptation protocol (SDAP), packet data convergence protocol (PDCP)). The CU 160 may be connected to one or more DUs 165 or RUs 170, and the one or more DUs 165 or RUs 170 may host lower protocol layers, such as layer 1 (L1) (e.g., physical (PHY) layer) or L2 (e.g., radio link control (RLC) layer, medium access control (MAC) layer) functionality and signaling, and may each be at least partially controlled by the CU 160. Additionally or alternatively, a functional split of the protocol stack may be employed between the DUs 165 and RUs 170, such that the DUs 165 may support one or more layers of the protocol stack, and the RUs 170 may support one or more different layers of the protocol stack. The DUs 165 may support one or more different cells (e.g., via one or more RUs 170). In some cases, the functional split between CU 160 and DU 165 or between DU 165 and RU 170 may be within the protocol layer (e.g., some functions of the protocol layer may be performed by one of CU 160, DU 165, or RU 170, while other functions of the protocol layer are performed by different ones of CU 160, DU 165, or RU 170). CU 160 may be further functionally split into CU control plane (CU-CP) and CU user plane (CU-UP) functions. CU 160 may be connected to one or more DUs 165 via midhaul communication links 162 (e.g., F1, F1-c, F1-u), and DU 165 may be connected to one or more RUs 170 via fronthaul communication links 168 (e.g., open fronthaul (FH) interface). In some examples, midhaul communication link 162 or fronthaul communication link 168 may be implemented based on an interface (e.g., a channel) between layers of a protocol stack supported by respective network entities 105 that communicate via such communication links.

[0047] In some wireless communication systems (e.g., wireless communication system 100), infrastructure and spectrum resources for radio access may support wireless backhaul link capabilities to supplement wired backhaul connections, thereby providing an IAB network architecture (e.g., to core network 130). In some cases, in an IAB network, one or more network entities 105 (e.g., IAB nodes 104) may be partially controlled by each other. One or more IAB nodes 104 may be referred to as donor entities or IAB donors. One or more DUs 165 or one or more RUs 170 may be controlled in part by one or more CUs 160 associated with a donor network entity 105 (e.g., donor base station 140). One or more donor network entities 105 (e.g., IAB donors) may communicate with one or more additional network entities 105 (e.g., IAB nodes 104) via supported access and backhaul links (e.g., backhaul communication links 120). The IAB node 104 may include an IAB mobile terminal (IAB-MT) controlled (e.g., scheduled) by a coupled IAB donor's DU 165. The IAB-MT may include an independent set of antennas for relaying communications with the UE 115, or may share the same antennas of the IAB node 104 (e.g., of the RU 170) for access via the DU 165 of the IAB node 104 (e.g., referred to as a virtual IAB-MT (vIAB-MT)). In some examples, the IAB node 104 may include a DU 165 that supports communication links with additional entities (e.g., IAB node 104, UE 115) within a relay chain or configuration (e.g., downstream) of the access network. In such cases, one or more components of the decomposed RAN architecture (e.g., one or more IAB nodes 104 or components of the IAB node 104) may be configured to operate according to the techniques described herein.

[0048] For example, an access network (AN) or RAN may include an access node (e.g., an IAB donor), communications between an IAB node 104, and one or more UEs 115. The IAB donor may facilitate a connection between the core network 130 and the AN (e.g., via a wired or wireless connection to the core network 130). That is, the IAB donor may refer to a RAN node having a wired or wireless connection to the core network 130. The IAB donor may include a CU 160 and at least one DU 165 (e.g., and RU 170), wherein the CU 160 may communicate with the core network 130 via an interface (e.g., a backhaul link). The IAB donor and the IAB node 104 may communicate via an F1 interface according to a protocol defining a signaling message (e.g., an F1 AP protocol). Additionally or alternatively, CU 160 may communicate with the core network via an interface (which may be an example of a portion of a backhaul link) and may communicate with other CUs 160 (e.g., CU 160 associated with an alternative IAB donor) via an Xn-C interface (which may be an example of a portion of a backhaul link).

[0049] An IAB node 104 may refer to a RAN node that provides IAB functionality (e.g., access for UE 115, wireless self-backhaul capabilities, etc.). DU 165 may act as a distributed scheduling node toward child nodes associated with IAB node 104, and IAB-MT may act as a scheduled node toward a parent node associated with IAB node 104. That is, an IAB donor may be referred to as a parent node that communicates with one or more child nodes (e.g., an IAB donor may relay for transmissions to UEs through one or more other IAB nodes 104). Additionally or alternatively, depending on the relay chain or configuration of the AN, an IAB node 104 may also be referred to as a parent node or child node of other IAB nodes 104. Thus, the IAB-MT entity of the IAB node 104 may provide a Uu interface for the child IAB node 104 to receive signaling from the parent IAB node 104 , and a DU interface (eg, DU 165 ) may provide a Uu interface for the parent IAB node 104 to signal to the child IAB node 104 or the UE 115 .

[0050] For example, the IAB node 104 may be referred to as a parent node supporting communications for a child IAB node or as a child IAB node associated with an IAB donor, or both. The IAB donor may include a CU 160 having a wired or wireless connection (e.g., backhaul communication link 120) to the core network 130, and may act as a parent node of the IAB node 104. For example, the DU 165 of the IAB donor may relay the transmission to the UE 115 through the IAB node 104, or may directly signal the transmission to the UE 115, or both. The CU 160 of the IAB donor may signal the establishment of a communication link to the IAB node 104 via the F1 interface, and the IAB node 104 may schedule the transmission (e.g., the transmission relayed from the IAB donor to the UE 115) via the DU 165. That is, data may be relayed to and from the IAB node 104 via signaling via the NR Uu interface of the MT to the IAB node 104. Communications with the IAB node 104 may be scheduled by the DU 165 of the IAB donor, and communications with the IAB node 104 may be scheduled by the DU 165 of the IAB node 104 .

[0051] Where the techniques described herein are applied in the context of a decomposed RAN architecture, one or more components of the decomposed RAN architecture may be configured to support SBFD in the FDD band as described herein. For example, some operations described as being performed by a UE 115 or a network entity 105 (e.g., a base station 140) may additionally or alternatively be performed by one or more components of the decomposed RAN architecture (e.g., an IAB node 104, a DU 165, a CU 160, a RU 170, a RIC 175, a SMO 180).

[0052] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, where a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or may be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as appliances or vehicles, meters, etc.

[0053] The UE 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as network entities 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, etc. Figure 1shown.

[0054] The UE 115 and the network entity 105 may wirelessly communicate with each other via one or more communication links 125 (e.g., access links) using resources associated with one or more carriers. The term "carrier" may refer to a collection of RF spectrum resources having a physical layer structure defined for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of an RF spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support communications with the UE 115 using carrier aggregation or multi-carrier operation. Depending on the carrier aggregation configuration, the UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers. Carrier aggregation may be used for both frequency division duplex (FDD) and time division duplex (TDD) component carriers. Communication between the network entity 105 and other devices may refer to communication between these devices and any part (e.g., entity, sub-entity) of the network entity 105. For example, the terms "send", "receive", or "communicate" when referring to the network entity 105 may refer to any part of the network entity 105 (e.g., base station 140, CU 160, DU 165, RU 170) of the RAN communicating with another device (e.g., directly or via one or more other network entities 105).

[0055] In some examples, such as in a carrier aggregation configuration, a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers. A carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute RF Channel Number (EARFCN)) and may be identified according to a channel raster for discovery by UE 115. A carrier may operate in a standalone mode, in which case initial acquisition and connection may be made by UE 115 via the carrier, or a carrier may operate in a non-standalone mode, in which case a different carrier (e.g., of the same or different radio access technology) is used to anchor the connection.

[0056] The communication link 125 shown in the wireless communication system 100 may include downlink transmissions (e.g., forward link transmissions) from the network entity 105 to the UE 115, uplink transmissions (e.g., return link transmissions) from the UE 115 to the network entity 105, or both, as well as other transmission configurations. A carrier may carry downlink communications or uplink communications (e.g., in FDD mode), or may be configured to carry downlink communications and uplink communications (e.g., in TDD mode).

[0057] A carrier may be associated with a particular bandwidth of the RF spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of a set of bandwidths of carriers for a particular radio access technology (e.g., 1.4 megahertz (MHz), 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz, 40 MHz, or 80 MHz). Devices of the wireless communication system 100 (e.g., the network entity 105, the UE 115, or both) may have a hardware configuration that supports communications using a particular carrier bandwidth, or may be configured to support communications using one of the carrier bandwidths in the set of carrier bandwidths. In some examples, the wireless communication system 100 may include a network entity 105 or a UE 115 that supports concurrent communications using carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate using a portion (e.g., subband, BWP) or all of the carrier bandwidth.

[0058] The signal waveform transmitted via the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may refer to a resource of one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, in which case the symbol period and the subcarrier spacing may be inversely related. The amount of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both), so that a relatively higher amount of resource elements (e.g., in the transmission duration) and a relatively higher order of the modulation scheme may correspond to a relatively higher communication rate. Wireless communication resources may refer to a combination of RF spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial resources may increase the data rate or data integrity used for communication with UE 115.

[0059] One or more parameter sets for a carrier may be supported, and the parameter sets may include subcarrier spacing (Δf) and cyclic prefixes. A carrier may be divided into one or more BWPs with the same or different parameter sets. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications of a UE 115 may be constrained to one or more active BWPs.

[0060] The time interval for the network entity 105 or the UE 115 may be expressed in multiples of a basic time unit, which may be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the supported subcarrier spacing, and N f The supported discrete Fourier transform (DFT) size may be indicated. Time intervals of the communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0061] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, the frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into a certain number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a certain number of symbol periods (e.g., depending on the length of the cyclic prefix appended in front of each symbol period). In some wireless communication systems 100, the time slot may be further divided into a plurality of micro-time slots associated with one or more symbols. Excluding the cyclic prefix, each symbol period may be associated with one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.

[0062] A subframe, a time slot, a mini-time slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the amount of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI)).

[0063] According to various techniques, physical channels may be multiplexed using carriers for communication. Physical control channels and physical data channels may be multiplexed for signaling via downlink carriers, for example, using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) of a physical control channel may be defined by a set of symbol periods and may extend across a system bandwidth of a carrier or a subset of that system bandwidth. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more UEs in UE 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. The aggregation level of a control channel candidate may refer to the amount of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 , and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0064] The network entity 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with the network entity 105 (e.g., using a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other cell identifier) ​​used to distinguish adjacent cells. In some examples, a cell may also refer to a coverage area 110 or a portion of a coverage area 110 (e.g., a sector) on which the logical communication entity operates. Depending on various factors (such as the capabilities of the network entity 105), such cells may range from smaller areas (e.g., structures, subsets of structures) to larger areas. For example, a cell may be or may include a building, a subset of a building, or an external space between or overlapping coverage areas 110, and the like.

[0065] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to UEs 115 that have service subscriptions with a network provider that supports the macro cell. Small cells may be associated with lower power network entities 105 (e.g., lower power base stations 140) compared to macro cells, and small cells may operate using the same or different (e.g., licensed, unlicensed) frequency bands as macro cells. Small cells may provide unrestricted access to UEs 115 that have service subscriptions with a network provider, or may provide restricted access to UEs 115 associated with small cells (e.g., UEs 115 in a closed subscriber group (CSG), UEs 115 associated with users in a home or office). The network entity 105 may support one or more cells, and may also use one or more component carriers to support communications via one or more cells.

[0066] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0067] In some examples, the network entities 105 (e.g., base stations 140, RUs 170) may be mobile and thus provide communication coverage for mobile coverage areas 110. In some examples, different coverage areas 110 associated with different technologies may overlap, but the different coverage areas 110 may be supported by the same network entity 105. In some other examples, overlapping coverage areas 110 associated with different technologies may be supported by different network entities 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of network entities 105 provide coverage for various coverage areas 110 using the same or different radio access technologies.

[0068] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the network entities 105 (e.g., base stations 140) may have similar frame timing, and transmissions from different network entities 105 may be approximately aligned in time. For asynchronous operation, the network entities 105 may have different frame timing, and in some examples, transmissions from different network entities 105 may not be aligned in time. The techniques described herein may be used for either synchronous operation or asynchronous operation.

[0069] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a network entity 105 (e.g., base station 140) without human intervention. In some examples, M2M communication or MTC may include communication from devices that integrate sensors or meters to measure or acquire information and relay such information to a central server or application that uses the information or presents the information to a person interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, wildlife monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0070] Some UEs 115 may be configured to employ an operating mode that reduces power consumption, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but does not transmit and receive concurrently). In some examples, half-duplex communication may be performed with a reduced peak rate. Other energy-saving techniques for UEs 115 include entering a power-saving deep sleep mode when not engaged in active communications, operating using limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a set of subcarriers or resource blocks (RBs)) within a carrier, within a guard band of a carrier, or outside a carrier.

[0071] The wireless communication system 100 may be configured to support ultra-reliable communication or low-latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low-latency communication (URLLC). UE 115 may be designed to support ultra-reliable or low-latency or critical functions. Ultra-reliable communication may include private communication or group communication, and may be supported by one or more services (such as push-to-talk, video, or data). Support for ultra-reliable, low-latency functions may include prioritization of services, and such services may be used for public safety or general commercial applications. The terms "ultra-reliable", "low latency", and "ultra-reliable low latency" are used interchangeably herein.

[0072] In some examples, a UE 115 may be configured to support communication directly with other UEs 115 via a device-to-device (D2D) communication link 135 (e.g., according to a peer-to-peer (P2P), D2D, or sidelink protocol). In some examples, one or more UEs 115 in a group that are performing D2D communication may be within a coverage area 110 of a network entity 105 (e.g., a base station 140, a RU 170), which may support aspects of such D2D communication configured by the network entity 105 (e.g., scheduled by the network entity). In some examples, one or more UEs 115 in such a group may be outside the coverage area 110 of the network entity 105, or may otherwise be unable or not configured to receive transmissions from the network entity 105. In some examples, a group of UEs 115 communicating via D2D communication may support a one-to-many (1:M) system, in which each UE 115 transmits to each of the other UEs 115 in the group. In some examples, network entity 105 may facilitate scheduling of resources for D2D communications. In some other examples, D2D communications may be performed between UEs 115 without involving network entity 105.

[0073] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, the vehicles can communicate using vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these items. The vehicles can signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in the V2X system can communicate with roadside infrastructure (such as roadside units), or communicate with the network via one or more network nodes (e.g., network entity 105, base station 140, RU 170) using vehicle-to-network (V2N) communication, or both.

[0074] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connections, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), which may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to an external network. The control plane entity may manage non-access layer (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by a network entity 105 (e.g., a base station 140) associated with the core network 130. User IP packets may be delivered through the user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to the IP service 150 of one or more network operators. IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0075] The wireless communication system 100 may operate using one or more frequency bands that may be in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally speaking, the region from 300 MHz to 3 GHz is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelength ranges from about one decimeter to one meter in length. UHF waves may be blocked or redirected by buildings and environmental features (which may be referred to as clusters), but these waves may be sufficient to penetrate structures so that macro cells provide services to UEs 115 located indoors. Communications using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) than communications using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0076] The wireless communication system 100 may also operate in an ultra-high frequency (SHF) region (also known as a centimeter band) that may be in the range of 3 GHz to 30 GHz or an extremely high frequency (EHF) region (also known as a millimeter band) that uses a spectrum (e.g., from 30 GHz to 300 GHz). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between a UE 115 and a network entity 105 (e.g., a base station 140, a RU 170), and the EHF antenna of the corresponding device may be smaller and closer than the UHF antenna. In some examples, such technology may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to even greater attenuation and a shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency regions, and the use of frequency bands specified across these frequency regions may vary by country or regulatory agency.

[0077] The wireless communication system 100 can utilize licensed and unlicensed RF spectrum bands. For example, the wireless communication system 100 can use unlicensed bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band) to employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology. When operating using unlicensed RF spectrum bands, devices such as network entity 105 and UE 115 can employ carrier sensing for conflict detection and avoidance. In some examples, operations using unlicensed bands can be based on carrier aggregation configuration (e.g., LAA) in combination with component carriers operating using licensed bands. Operations using unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, and the like.

[0078] The network entity 105 (e.g., base station 140, RU 170) or UE 115 may be equipped with multiple antennas that can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of the network entity 105 or UE 115 may be located in one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly such as an antenna tower. In some examples, antennas or antenna arrays associated with the network entity 105 may be located at different geographical locations. The network entity 105 may include an antenna array having a collection of multiple rows and columns of antenna ports that the network entity 105 can use to support beamforming for communications with the UE 115. Similarly, the UE 115 may include one or more antenna arrays that may support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support RF beamforming for signals sent via the antenna ports.

[0079] The network entity 105 or UE 115 may use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by sending or receiving multiple signals via different spatial layers. Such a technology may be referred to as spatial multiplexing. The multiple signals may be sent, for example, by a transmitting device via different antennas or different combinations of antennas. Similarly, the multiple signals may be received by a receiving device via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry information associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technologies include: single-user MIMO (SU-MIMO), in which multiple spatial layers are sent to the same receiving device; and multi-user MIMO (MU-MIMO), in which multiple spatial layers are sent to multiple devices.

[0080] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a sender device or a receiver device (e.g., network entity 105, UE 115) to shape or direct an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the sender device and the receiver device. Beamforming may be achieved by combining signals conveyed via antenna elements of an antenna array so that some signals propagating along a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals conveyed via antenna elements may include the sender device or the receiver device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each of these antenna elements may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the sender device or the receiver device or relative to some other orientation).

[0081] The network entity 105 or UE 115 may use beam scanning techniques as part of a beamforming operation. For example, the network entity 105 (e.g., base station 140, RU 170) may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be sent multiple times by the network entity 105 along different directions. For example, the network entity 105 may send signals according to different sets of beamforming weights associated with different transmission directions. Transmissions along different beam directions may be used to identify (e.g., by a transmitting device (such as network entity 105), or by a receiving device (such as UE 115)) beam directions for later transmission or reception by the network entity 105.

[0082] Some signals, such as data signals associated with a particular receiving device, may be sent by a transmitting device (e.g., transmitting network entity 105, transmitting UE 115) along a single beam direction (e.g., a direction associated with a receiving device (such as receiving network entity 105 or receiving UE 115)). In some examples, a beam direction associated with transmission along a single beam direction may be determined based on signals sent along one or more beam directions. For example, UE 115 may receive one or more of the signals sent by network entity 105 along different directions, and may report to network entity 105 an indication of the signal received by UE 115 with the highest signal quality or other acceptable signal quality.

[0083] In some examples, transmission by a device (e.g., by network entity 105 or UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or beamforming to generate a combined beam for transmission (e.g., from network entity 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured set of beams across a system bandwidth or one or more subbands. Network entity 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)), which may or may not be precoded. UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel codebook, a linear combination codebook, a port selection codebook). Although these techniques are described with reference to signals sent along one or more directions by a network entity 105 (e.g., base station 140, RU 170), UE 115 may use similar techniques to send signals multiple times along different directions (e.g., to identify a beam direction for subsequent transmission or reception by UE 115), or to send signals along a single direction (e.g., to send data to a receiving device).

[0084] A receiving device (e.g., UE 115) may perform receiving operations according to multiple receiving configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a receiving device (e.g., network entity 105). For example, the receiving device may perform reception according to multiple receiving directions by: receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receiving beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receiving beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receiving configurations or receiving directions. In some examples, the receiving device may use a single receiving configuration to receive along a single beam direction (e.g., when receiving a data signal). A single receive configuration may be aligned along a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0085] The wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communications at the bearer or PDCP layer may be IP-based. The RLC layer may perform packet segmentation and reassembly to communicate via logical channels. The MAC layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also implement error detection techniques, error correction techniques, or both to support retransmission to improve link efficiency. In the control plane, the RRC layer may provide the establishment, configuration, and maintenance of an RRC connection for a radio bearer supporting user plane data between the UE 115 and the network entity 105 or the core network 130. The PHY layer may map transport channels to physical channels.

[0086] UE 115 and network entity 105 may support retransmission of data to increase the likelihood of data being successfully received. Hybrid automatic repeat request (HARQ) feedback is a technique for increasing the likelihood of correctly receiving data via a communication link (e.g., communication link 125, D2D communication link 135). HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve throughput at the MAC layer under poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, a device may support same-slot HARQ feedback, in which case the device may provide HARQ feedback in a specific time slot for data received via a previous symbol in the time slot. In some other examples, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0087] In some examples, an operator may utilize a duplex gap as a second downlink channel for an operator with an uplink channel adjacent to a guard. An operator may utilize a duplex gap as a second uplink channel for an operator with a downlink channel adjacent to a guard. In some examples, a new block may be added for an operator (e.g., a first operator, a second operator, or a third and different operator). The new block may include an uplink channel and a downlink channel that are adjacent to corresponding uplink channels and downlink channels of other operators, thereby avoiding additional interference. A new block may be added for an operator (e.g., a first operator, a second operator, or a third and different operator), and the new block may be subdivided in time, frequency, or both.

[0088] Figure 2 An example of a wireless communication system 200 supporting SBFD in a frequency division duplex band according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. For example, it may be a reference Figure 1 The described examples of corresponding devices, UE (eg, UE 115 ) and network entities (eg, network entity 105 ) may communicate according to wireless communication system 200 .

[0089] The wireless communication system 200 may include a network entity 105-a, which may be an example of a network entity 105 as described herein. The wireless communication system 200 may also include a UE 115-a, which may be an example of a UE 115 as described herein. In some examples, the network entity 105-a and the UE 115-a may communicate via one or more communication links 205.

[0090] The network entity 105-a and the UE 115-a may each be configured to communicate according to a full-duplex communication configuration (e.g., supporting both downlink and uplink communications simultaneously). For example, one or more communication links 205 may be used for downlink communications, uplink communications, or both. In SBFD techniques, uplink communications and downlink communications are sent in (e.g., completely or partially) overlapping time resources but non-overlapping frequency resources. To avoid or reduce cross-link interference, non-overlapping frequency resources may be separated by guard bands. In some examples, the guard bands may also be referred to as duplex gaps 220.

[0091] The UE 115-a and the network entity 105-a may communicate via one or more communication links 205 in a full-duplex frequency band. In some cases, the network entity 105-a may operate in one or more FDD frequency bands including one or more block channels (e.g., a channel including multiple adjacent or non-adjacent channels or sub-channels) (e.g., a low frequency spectrum may be used for NR FDD operation). For example, the frequency band 210-a may represent a 600 MHz frequency band, which may span approximately 617 MHz to 698 MHz with a total bandwidth of 81 MHz. The 600 MHz frequency band may also be referred to as the n71 frequency band.

[0092] In some examples, frequency band 210-a may be divided into downlink channels 215 and uplink channels 225. Although reference is made to Figure 2 exemplified, but the techniques described herein can be similarly applied to any frequency band or sub-band. Figure 2 As shown, for illustrative purposes, frequency band 210-a may be divided into seven block channels. In some cases, each of the block channels may include a pair of spectrum (eg, downlink channel 215 and uplink channel 225). For example, a first block of channels may define a paired spectrum including a downlink channel 215-a and an uplink channel 225-a, a second block of channels may define a paired spectrum including a downlink channel 215-b and an uplink channel 225-b, a third block of channels may define a paired spectrum including a downlink channel 215-c and an uplink channel 225-c, a fourth block of channels may define a paired spectrum including a downlink channel 215-d and an uplink channel 225-d, a fifth block of channels may define a paired spectrum including a downlink channel 215-e and an uplink channel 225-e, a sixth block of channels may define a paired spectrum including a downlink channel 215-f and an uplink channel 225-f, and a seventh block of channels may define a paired spectrum including a downlink channel 215-g and an uplink channel 225-g.

[0093] In some instances, at least one or more block channels that are paired across at least one uplink channel and one downlink channel may be allocated to an operator. For example, a first block channel including downlink channel 215-a and uplink channel 225- may be allocated to a first operator, and a second block channel including downlink channel 215-b and uplink channel 225-b may be allocated to a second operator. Each block channel may have a bandwidth of approximately 10 MHz, which is equally divided into 5 MHz spectrum for downlink channel 215 and 5 MHz spectrum for uplink channel 225.

[0094] In some cases, the duplex gap 220 may be located in the frequency band 210-a. More specifically, the duplex gap 220 may be between the downlink channel 215 and the uplink channel 225. For example, the 600 MHz frequency band may include a duplex spectrum gap of approximately 11 MHz (e.g., 652 MHz to 663 MHz). In this example, the duplex gap may occupy approximately 13.5% of the frequency resources of the 600 MHz frequency band.

[0095] In some cases, duplex gap 220 can avoid or reduce cross-link interference (e.g., interference caused by uplink and downlink transmissions in overlapping time intervals). For example, duplex gap 220 can support uplink signaling by a first operator adjacent to the duplex gap and downlink signaling by a second operator also adjacent to the duplex gap without interference. Figure 2 As an illustrative example, duplex gap 220 may protect downlink transmissions of a first operator (assigned to downlink channel 215-g) from interference (e.g., jammer) from uplink transmissions of a second operator (assigned to uplink channel 225-a). However, duplex gaps may lead to system inefficiencies because a large amount of frequency resources remain unutilized, resulting in reduced throughput, increased system latency, and a reduced user experience.

[0096] In some examples, band 210-b and band 210-c may be divided into downlink channel 215 and uplink channel 225. Band 210-b and band 210-c may represent the lower 700MHz band and the upper 700MHz band, respectively. In some cases, each corresponding block channel may define a paired spectrum including at least two or more channels. For example, a first block channel may include a pair of two 6MHz channels (e.g., uplink channel 225-h (frequency range of approximately 698MHz to 704MHz) and downlink channel 215-h (frequency range of approximately 728MHz to 738MHz)), with a total bandwidth of 12MHz. A second block channel may include a pair of two 6MHz channels (e.g., uplink channel 225-i (frequency range of approximately 704MHz to 710MHz) and downlink channel 215-i (frequency range of approximately 734MHz to 740MHz)), with a total bandwidth of 12MHz. The third block of channels may include a pair of two 6MHz channels (e.g., uplink channel 225-j (frequency range is approximately 710MHz to 716MHz) and downlink channel 215-j (frequency range is approximately 740MHz to 746MHz)) with a total bandwidth of 12MHz. These first three blocks of channels may correspond to the n12NR band. The third block of channels may also include a pair of two 11MHz channels in the n13 NR band (e.g., downlink channel 215-jj (frequency range is approximately 746MHz to 757MHz) and uplink channel 225-jj (frequency range is approximately 776MHz to 787MHz)) with a total bandwidth of 22MHz. The fourth block of channels may also include a pair of two 10MHz channels in the n14 NR band (e.g., downlink channel 215-k (frequency range is approximately 758MHz to 768MHz) and uplink channel 225-k (frequency range is approximately 788MHz to 798MHz)) with a total bandwidth of 20MHz. The first block of channels may include two 1 MHz channels (e.g., downlink channel 215-hh (frequency range of approximately 757 MHz to 758 MHz) and uplink channel 225-hh (frequency range of approximately 787 MHz to 788 MHz)) with a total bandwidth of 2 MHz. Although the 600 MHz band is primarily referenced as well as referenced Figure 2 The 700 MHz upper and lower bands are described herein, but the techniques described herein may be similarly applied to any frequency band or sub-band (e.g., band 210-a, band 210-b, and band 210-c may be examples of any range of frequency resources).

[0097] In some cases, frequency band 210-b and / or frequency band 210-c may include unpaired channels that may be used as duplex gaps. For example, unpaired spectrum 230-a and unpaired spectrum 230-b may be located between uplink channel 225-j and downlink channel 215-h. Unpaired spectrum 230-a (frequency range of approximately 716 MHz to 722 MHz) and unpaired spectrum 230-b (frequency range of approximately 722 MHz to 728 MHz) may be utilized, or may be utilized without including them in a block channel (e.g., including multiple channels). In some instances, unpaired spectrum may be used as a duplex gap as described in reference to FIG. Figure 2 The duplex gap 220 .

[0098] In some cases, the duplex gap 220 (e.g., or the unpaired spectrum 230 operating as a duplex gap) may include one or more unoccupied frequency resources. The duplex gap 220 may support uplink signaling by one operator adjacent to the duplex gap and downlink signaling by another operator adjacent to the duplex gap without interference. However, the resources of the duplex gap 220 may remain unutilized, resulting in reduced throughput and less efficient use of available system resources. The network entity 105-a may have the capability of SBFD technology, which may support full-duplex signaling within a single channel or subband (e.g., without causing increased interference to the subband or channel). Such SBFD technology may support the use of the duplex gap 220 and / or the unpaired spectrum 230. However, the use of the duplex gap 220 by one operator may cause interference to another operator in another channel.

[0099] The techniques described herein may support one or more rules for SBFD in a frequency division duplex band, such as reference Figures 3 to 8 In some examples, frequency resources in duplex gap 220 may be allocated to a first operator without causing interference to another operator. For example, if such resource allocation complies with one or more rules or conditions, the first operator may utilize duplex gap 220 as an additional downlink channel 215 or an additional uplink channel 225 without causing interference to another operator. In this way, the frequency resources of duplex gap 220 may be used more efficiently, thereby increasing throughput, reducing system latency, and improving user experience.

[0100] Figure 3 An example of a wireless communication system 300 supporting SBFD in a FDD band according to one or more aspects of the present disclosure is illustrated. The wireless communication system 300 supporting SBFD in a frequency division duplex band according to one or more aspects of the present disclosure. In some examples, the wireless communication system 300 may implement aspects of the wireless communication system 200. For example, it may be a reference Figure 1 to Figure 2The described examples of corresponding devices, UE (eg, UE 115 ) and network entities (eg, network entity 105 ) may communicate according to wireless communication system 300 .

[0101] In some cases, the UE and the network entity may communicate according to the SBFD technique. The SBFD technique may enable operation of downlink and uplink communications in the same TDD channel without a guard band or with a very small guard band. For example, downlink transmission 315 and uplink transmission 310 may be sent in overlapping time resources, with no guard band or almost no guard band, without interference (e.g., by having sufficient spatial isolation between the transmitting antenna panel and the receiving antenna panel, plus digital elimination of residual interference). For example, the UE and the network entity may perform downlink transmission 315 during time interval 305-a and uplink transmission 310 during time interval 305-e, and may support (e.g., by implementing SBFD technique) both uplink transmission 310 and downlink transmission 315 during time interval 305-b, time interval 305-c, and time interval 305-d.

[0102] In some cases, SBFD techniques may allow a communication system (eg, a cellular system) to utilize duplex gaps (eg, reference Figure 2 In some examples, operators with SBFD technology can utilize duplex gaps (e.g., duplex guard bands) in FDD bands to improve spectrum utilization. The techniques described herein define rules and procedures that enable the use of duplex gaps in FDD bands (e.g., based on SBFD technology).

[0103] Figure 4 An example of a wireless communication system 400 supporting SBFD in a frequency division duplex band according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 400 may implement aspects of the wireless communication systems 100, 200, and 300. For example, it may be a reference Figures 1 to 3The UE (e.g., UE 115) and network entity (e.g., network entity 105) of the described corresponding device examples can communicate according to the wireless communication system 400. In some examples, the wireless communication system 400 can support wireless communication via one or more downlink channels 415 (e.g., downlink channel 415-a, downlink channel 415-b, downlink channel 415-c, downlink channel 415-d, downlink channel 415-e, downlink channel 415-f, and downlink channel 415-e), one or more uplink channels 425 (e.g., uplink channel 425-a, uplink channel 425-b, uplink channel 425-c, uplink channel 425-d, uplink channel 425-e, uplink channel 425-f, and uplink channel 425-g), or a combination thereof on one or more frequency bands (e.g., FDD frequency bands).

[0104] In some cases, the first operator may utilize the duplex gap 420 as the second downlink channel 415-aa. For example, an operator having (e.g., allocated) an uplink channel 425-a adjacent to (e.g., adjacent to) the duplex gap 420 (e.g., adjacent to it in frequency) (e.g., where the second operator has a downlink channel 415-g that is also adjacent to the duplex gap 420) may utilize the duplex gap 420 as the second downlink channel in the block channel. In some examples, the second downlink channel 415-aa may be paired with a block channel associated with the first operator. The block channel may be paired across three channels, including the second downlink channel 415-aa, the first downlink channel 425-a adjacent to the duplex gap 420, and the first uplink channel 415-a (e.g., which is not adjacent to the duplex gap 420). In the first example 405-a, the first uplink channel 425-a may have a frequency of 5 MHz (a frequency range of approximately 633 MHz to 688 MHz), the first downlink channel 415-g may have a frequency of 5 MHz (a frequency range of approximately 617 MHz to 622 MHz), and the second downlink channel 415-aa may have a frequency of 11 MHz (a frequency range of approximately 652 MHz to 663 MHz), for a total bandwidth allocated to the first operator of 21 MHz.

[0105] Any interference caused by downlink channel 415-aa to an uplink channel of the same operator (e.g., uplink channel 425-a) may be resolved using the SBFD capabilities supported by the operator. Any interference caused by downlink channel 415-aa to uplink channel 425-b (e.g., where the operator with uplink channel 425-b is different from the operator utilizing duplex gap 420) may be mitigated or avoided due to uplink channel 425-a serving as a guard between downlink channel 415-aa and uplink channel 425-b. In some examples, a transmitting device (e.g., a network entity transmitting via downlink channel 415-aa) may be subject to enhanced or restricted transmission thresholds (e.g., transmission requirements or spectrum masks) when communicating via downlink channel 415-aa.

[0106] Additionally or alternatively (e.g., in example 405-b), the duplex gap 420 may not be fully used as a downlink channel (e.g., downlink channel 415-aa). For example, a small guard band 410 may exist between the downlink channel 415-aa and the uplink channel 425-a. The guard band 410 may have a smaller bandwidth than the duplex gap 420. For example, the first uplink channel 425-a may have a bandwidth of 5 MHz (a frequency range of approximately 633 MHz to 668 MHz), the first downlink channel 415-g may have a bandwidth of 5 MHz (a frequency range of approximately 617 to 644), and the second downlink channel may have a bandwidth of 6 MHz (a frequency range of approximately 652 MHz to 658 MHz), for a total bandwidth of 16 MHz allocated to the block channels. Thus, the guard band 410 may have a bandwidth of approximately 5 MHz. Although primarily referring to reference Figure 4 The 600 MHz frequency band is described herein, but the techniques described herein may be similarly applied to any frequency band or sub-band.

[0107] Figure 5 An example of a wireless communication system 500 supporting SBFD in a frequency division duplex band according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 500 may implement aspects of the wireless communication systems 100, 200, 300, and 400. For example, it may be a reference Figures 1 to 4The UE (e.g., UE 115) and network entity (e.g., network entity 105) of the described corresponding device examples can communicate according to the wireless communication system 500. In some examples, the wireless communication system 500 can support wireless communication via one or more downlink channels 515 (e.g., downlink channel 515-a, downlink channel 515-b, downlink channel 515-c, downlink channel 515-d, downlink channel 515-e, downlink channel 515-f, and downlink channel 515-e), one or more uplink channels 525 (e.g., uplink channel 525-a, uplink channel 525-b, uplink channel 525-c, uplink channel 525-d, uplink channel 525-e, uplink channel 525-f, and uplink channel 525-g), or a combination thereof on one or more frequency bands (e.g., FDD frequency bands).

[0108] In some cases, a first operator may utilize a duplex gap 520 (e.g., a duplex guard) as a second uplink channel 525-gg. For example, an operator having (e.g., allocated) a downlink channel 515-g adjacent to a duplex gap 520 (e.g., where a second operator has an uplink channel 525-a also adjacent to a duplex gap 520) may utilize the duplex gap 520 as a second uplink channel in a block channel. The duplex gap 520 may represent a duplex gap 520 as described in reference to FIG. Figure 2 The duplex gap 220 described. In some examples, the second uplink channel 525-gg can be paired with a block channel associated with the first operator. The block channel can be paired across three channels, including the second uplink channel 525-gg, the first downlink channel 515-g adjacent to the duplex gap 520, and the first uplink channel 525-g (e.g., it is not adjacent to the duplex gap 520). In the first example 505-a, the first uplink channel 525-g can have a frequency of 5 MHz (a frequency range of approximately 693 MHz to 698 MHz), the first downlink channel 515-g can have a frequency of 5 MHz (a frequency range of approximately 647 MHz to 652 MHz), and the second uplink channel 415-aa can have a frequency of 11 MHz (a frequency range of approximately 652 MHz to 663 MHz), and the total bandwidth allocated to the first operator is 21 MHz.

[0109] Any interference caused by uplink channel 525-gg to an uplink channel of the same operator (e.g., downlink channel 515-g) may be resolved using the SBFD capabilities supported by the operator. Any interference caused by uplink channel 525-gg to downlink channel 515-f (e.g., where the operator with downlink channel 515-f is different from the operator utilizing duplex gap 420) may be mitigated or avoided due to downlink channel 515-g acting as a guard between uplink channel 525-gg and downlink channel 515-f. In some examples, a transmitting device (e.g., a network entity transmitting via uplink channel 525-gg) may be subject to enhanced or restricted emission thresholds (e.g., emission requirements or spectrum masks) when communicating via uplink channel 525-gg.

[0110] Additionally or alternatively (e.g., in example 505-b), the duplex gap 520 may not be fully used as an uplink channel 525 (e.g., uplink channel 525-gg). For example, a small guard band 510 may exist between the downlink channel 515-g and the uplink channel 525-gg. The guard band 510 may have a smaller bandwidth than the duplex gap 520, but still protect the uplink channel 525-gg from interference. For example, the first uplink channel 525-g may have a frequency of 5 MHz (a frequency range of approximately 693 MHz to 698 MHz), the first downlink channel 515-g may have a frequency of 5 MHz (a frequency range of approximately 647 MHz to 652 MHz), and the second uplink channel 415-aa may have a frequency of 6 MHz (a frequency range of approximately 652 MHz to 663 MHz), with a total bandwidth allocated to the first operator of 16 MHz. Thus, the guard band 510 may have a bandwidth of approximately 5 MHz. Although primarily referenced to reference Figure 5 The 600 MHz frequency band is described herein, but the techniques described herein may be similarly applied to any frequency band or sub-band.

[0111] Figure 6 An example of a wireless communication system 600 supporting SBFD in a frequency division duplex band according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 600 may implement aspects of the wireless communication systems 100, 200, 300, 400, and 500. For example, it may be a reference Figures 1 to 5The UE (e.g., UE 115) and network entity (e.g., network entity 105) of the described corresponding device examples can communicate according to the wireless communication system 600. In some examples, the wireless communication system 600 can support wireless communication via one or more downlink channels 615 (e.g., downlink channel 615-a, downlink channel 615-b, downlink channel 615-c, downlink channel 615-d, downlink channel 615-e, downlink channel 615-f, and downlink channel 615-e), one or more uplink channels 625 (e.g., uplink channel 625-a, uplink channel 625-b, uplink channel 625-c, uplink channel 625-d, uplink channel 625-e, uplink channel 625-f, and uplink channel 625-g), or a combination thereof on one or more frequency bands (e.g., FDD frequency bands).

[0112] In some cases, new paired channels (e.g., new block channels) may be introduced within the duplex gap 620. For example, a first operator (e.g., which may have SFDB capabilities) may use a first portion of the duplex gap 620 (e.g., a duplex guard) for uplink signaling and a second portion of the duplex gap 620 for downlink signaling. In a first example 605-a, the first operator may utilize the duplex gap 620 as a first downlink channel 615-h and a first uplink channel 625-h without a guard band. For example, the first operator may pair a downlink channel 615-h with a bandwidth of 5.5 MHz (a frequency range of approximately 652 MHz to 657.5 MHz) and an uplink channel 625-h with a bandwidth of 5.5 MHz (a frequency range of approximately 657.5 MHz to 663 MHz), with a total bandwidth allocated to the first operator of 11 MHz. As shown in reference Figure 6 As described, the first operator may be represented as shown in reference Figure 4 The first operator, as referenced Figure 5 The first operator or a different operator (e.g., a new operator). For example, the first operator using the new block channel within the duplex gap 620 may be an operator associated with one or more downlink channels 615 (e.g., downlink channel 615-g), or may be associated with one or more uplink channels 625 (e.g., uplink channel 625-a), or may be a different (e.g., a third) operator that is not associated with the downlink channel 615-g or the uplink channel 625-a.

[0113] In some cases (e.g., in the second example 605-b), the first operator may utilize the duplex gap 620 as a first downlink channel 615-h, a first uplink channel 625-h, and a guard band 630. The guard band 630 may be located between the first downlink channel 615-h and the first uplink channel 625-h and have a smaller bandwidth than the duplex gap 620. For example, the downlink channel 615-h may have a bandwidth of 5 MHz (a frequency range of approximately 652 MHz to 657 MHz), the uplink channel 625-h may have a bandwidth of 5 MHz (a frequency range of approximately 658 MHz to 663 MHz), and the guard band 630 may have a bandwidth of 1 MHz, for a total bandwidth of 10 MHz allocated to the block channels associated with the first operator. Although the primary reference to the reference Figure 6 The 600 MHz frequency band is described herein, but the techniques described herein may be similarly applied to any frequency band or sub-band.

[0114] Figure 7 An example of a wireless communication system 700 supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated. In some examples, the wireless communication system 700 may implement aspects of the wireless communication systems 100, 200, 300, 400, 500, and 600. For example, it may be a reference Figures 1 to 6 The UE (e.g., UE 115) and network entity (e.g., network entity 105) of the described corresponding device examples can communicate according to the wireless communication system 700. In some examples, the wireless communication system 700 can support wireless communication via one or more downlink channels 715 (e.g., downlink channel 715-a, downlink channel 715-b, downlink channel 715-c, downlink channel 715-d, downlink channel 715-e, downlink channel 715-f, and downlink channel 715-e), one or more uplink channels 725 (e.g., uplink channel 725-a, uplink channel 725-b, uplink channel 725-c, uplink channel 725-d, uplink channel 725-e, uplink channel 725-f, and uplink channel 725-g), or a combination thereof on one or more frequency bands (e.g., FDD frequency bands).

[0115] In some cases, new block channels may be defined for duplex gap 420 used by operators with SBFD capabilities. For example, the new block channels may include downlink channels 715-h and uplink channels 725-h.

[0116] In some examples, an operator may use a portion of the new block channel (e.g., downlink channel 715-h) for downlink signaling, or use a portion of the new block channel (e.g., uplink channel 725-h), or both. In a first example 705-a), a first operator (e.g., associated with downlink channel 715-g) may use uplink channel 725-h (e.g., a portion of the new block channel in duplex gap 720) for uplink signaling (e.g., and may avoid sending downlink signaling via downlink channel 715 to avoid interference with any other channels owned by other operators).

[0117] In some examples (e.g., in second example 705-b), a second operator (e.g., associated with uplink channel 725-a) may use downlink channel 715-h (e.g., a portion of the new block channel in the duplex gap) for downlink signaling (e.g., may avoid using uplink channel 725-h for uplink signaling to avoid interference with any other channels owned by other operators).

[0118] In some examples (e.g., in the third example 705-c), two operators (e.g., a first operator and a second operator, or one of the first operator or the second operator and a third operator) may share spectrum between the two operators in a TDD manner. For example, the first operator may be associated with the uplink channel 725-h during the first part of the time interval. The first operator and the second operator may share a new block channel during one or more (e.g., two) time intervals (e.g., the first operator uses the uplink channel 725-h for communication, and the second operator uses the downlink channel 715-h for communication). During another time interval (e.g., the fourth time interval), one of the operators may use the resources of the duplex gap 720 for the downlink channel 715-h.

[0119] Figure 8An example of a process flow 800 for supporting SBFD in an FDD band according to one or more aspects of the present disclosure is illustrated. The process flow 800 may implement or be implemented by aspects of the wireless communication system 100, the wireless communication system 200, the wireless communication system 300, the wireless communication system 400, the wireless communication system 500, the wireless communication system 600, and the wireless communication system 700, or may be implemented by aspects of the wireless communication systems 100, 200, 300, 400, 500, 600, and 700. For example, the process flow 800 may illustrate operations between a UE 115-b and a network entity 105-b (which may be examples of corresponding devices described herein). In the following description of the process flow 800, the operations between the UE 115-b and the network entity 105-b may be sent in an order different from the example order shown, or the operations performed by the UE 115-b and the network entity 105-b may be performed in a different order or at a different time. Some operations may also be omitted from the process flow 800 , or other operations may be added to the process flow 800 .

[0120] At 805, the network entity 105-b may select a duplex gap between an uplink channel in a first portion of a full-duplex frequency band and a downlink channel in a second portion of the full-duplex frequency band. In some aspects, the duplex gap may support uplink signaling by one operator adjacent to the duplex gap and downlink signaling by another operator adjacent to the duplex gap without interference. However, the duplex gap may include unoccupied frequency resources, resulting in reduced throughput and less efficient use of available system resources.

[0121] At 810, the network entity 105-b may determine one or more rules for SBFD signaling communicated to one or more UEs (e.g., UE115-b) via a duplex gap. In some aspects, an operator with SBFD signaling capability may utilize a duplex gap (e.g., an unpaired spectrum) as an additional downlink channel and / or an additional uplink channel without causing interference to another operator. In this way, the frequency resources of the duplex gap may be used without introducing interference to other operators using other channels. One or more rules for SBFD signaling may depend on the resources of the duplex gap allocated to at least the first operator. One or more rules for SBFD signaling may also depend on which channels are paired with the block channel associated with the first operator (e.g., a downlink channel and an uplink channel) and where they are located. For example, if the block channel associated with the first operator includes a first uplink channel adjacent to the duplex gap, the first operator may utilize the duplex gap as a second downlink channel. Similarly, if the block channel associated with the first operator includes a first downlink channel adjacent to the duplex gap, the first operator may utilize the duplex gap as a second uplink channel. In such an example, the network entity 105-b may select a block channel associated with the first operator based on one or more rules and communicate via the block channel (e.g., an extended block channel that now includes resources of the duplex gap and other channels, or a new block channel that occupies resources of the duplex gap).

[0122] At 815, the network entity 105-b may select a block channel associated with the first operator, wherein the block channel includes at least a first uplink channel, a first downlink channel, and a duplex gap. The network entity 105-b or the UE 115-b may perform any communication via the duplex gap. That is, the first operator may send signaling via the duplex gap (e.g., via the block channel including the duplex gap) by utilizing at least a portion of the frequency resources of the duplex gap now allocated to the block channel.

[0123] At 820, network entity 105-b may send downlink signaling via the duplex gap. That is, if at least a portion of the duplex is used as a second downlink channel according to the rule, network entity 105-b may send downlink signaling to UE 115-b via the duplex gap. For example, if a block channel associated with a first operator includes a first uplink channel adjacent to the duplex gap, the first operator may utilize the duplex gap as a second downlink channel. In some examples, network entity 105-b may avoid sending downlink signaling via a guard band located in a portion of the duplex gap (e.g., at 820).

[0124] At 825, network entity 105-b may receive uplink signaling (e.g., from UE 115-b) via the duplex gap. That is, if at least a portion of the duplex gap is used as a second uplink channel of the operator according to the rule, UE 115-b may send uplink signaling to network entity 105-b via the duplex gap. For example, if a block channel associated with a first operator includes a first downlink channel adjacent to the duplex gap, the second operator may utilize the duplex gap as a second uplink channel. In some examples, UE 115-b may avoid sending uplink signaling (e.g., at 825) via a guard band located in a portion of the duplex gap.

[0125] In some examples (e.g., as referenced Figure 6 ), the network entity 105-b may select (e.g., at 815) a block channel associated with a first operator (e.g., which may or may not be an operator associated with the uplink channel or the downlink channel). The block channel may include a first portion of the duplex gap allocated for uplink signaling and a second portion of the duplex gap allocated for downlink signaling. At 820, 825, or both, the network entity 105-b may perform wireless communication via at least the duplex gap by performing wireless communication via the block channel.

[0126] In some examples (e.g., as referenced Figure 7 In some embodiments, the network entity 105-b may select (e.g., at 815) a block channel associated with a first operator (e.g., which may or may not be an operator associated with the uplink channel or the downlink channel). The block channel may include a first portion of the duplex gap allocated for uplink signaling and a second portion of the duplex gap allocated for downlink signaling. The network entity 105-b may perform wireless communication via at least the duplex gap by performing wireless communication via the first portion of the duplex gap or the second portion of the duplex gap based at least in part on one or more rules.

[0127] Fig. 9 A block diagram 900 of a device 905 supporting SBFD in an FDD band according to one or more aspects of the present disclosure is shown. The device 905 may be an example of aspects of the network entity 105 as described herein. The device 905 may include a receiver 910, a transmitter 915, and a communication manager 920. The device 905 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0128] The receiver 910 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be passed to other components of the device 905. In some examples, the receiver 910 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, the receiver 910 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.

[0129] The transmitter 915 may provide a means for outputting (e.g., sending, providing, conveying, transmitting) information generated by other components of the device 905. For example, the transmitter 915 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 915 may support outputting information by sending signals via one or more antennas. Additionally or alternatively, the transmitter 915 may support outputting information by sending signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 915 and the receiver 910 may be co-located in a transceiver, which may include a modem or be coupled to a modem.

[0130] The communication manager 920, the receiver 910, the transmitter 915, or various combinations thereof or various components thereof may be examples of means for performing various aspects of SBFD in the FDD band as described herein. For example, the communication manager 920, the receiver 910, the transmitter 915, or various combinations thereof or components thereof may support methods for performing one or more of the functions described herein.

[0131] In some examples, the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in a communication management circuit system). The hardware may include a processor, a DSP, a CPU, an ASIC, an FPGA or other programmable logic device, a microcontroller, discrete gate or transistor logic components, discrete hardware components, or any combination thereof that is configured as or otherwise supports components for performing the functions described in the present disclosure. In some examples, a processor and a memory coupled to the processor may be configured to perform one or more of the functions described herein (e.g., by executing instructions stored in the memory by the processor).

[0132] Additionally or alternatively, in some examples, the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in code executed by a processor (e.g., as communication management software or firmware). If implemented in code executed by a processor, the functionality of the communication manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be performed by a general purpose processor (e.g., configured as or otherwise supporting components for performing the functions described in the present disclosure), a DSP, a CPU, an ASIC, an FPGA, a microcontroller, or any combination of these or other programmable logic devices.

[0133] In some examples, the communication manager 920 may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the receiver 910, the transmitter 915, or both. For example, the communication manager 920 may receive information from the receiver 910, transmit information to the transmitter 915, or be integrated in conjunction with the receiver 910, the transmitter 915, or both to obtain information, output information, or perform various other operations as described herein.

[0134] According to examples as disclosed herein, the communication manager 920 may support wireless communication at a network entity. For example, the communication manager 920 may be configured to or otherwise support a component for selecting a duplex gap, the duplex gap being located between a group of multiple uplink channels in a first portion of a full-duplex frequency band and a group of multiple downlink channels in a second portion of the full-duplex frequency band, the duplex gap comprising one or more unoccupied frequency resources located between a group of multiple frequency resources associated with the group of multiple uplink channels and between a group of multiple frequency resources associated with the group of multiple downlink channels. The communication manager 920 may be configured to or otherwise support a component for determining one or more rules for SBFD signaling communicated to one or more user equipment (UE) via the duplex gap. The communication manager 920 may be configured to or otherwise support a component for performing wireless communication with one or more UEs via the duplex gap according to the SBFD full-duplex mode and based on one or more rules.

[0135] By including or configuring a communication manager 920 according to the examples described herein, the device 905 (e.g., a processor controlling the receiver 910, the transmitter 915, the communication manager 920, or a combination thereof or otherwise coupled thereto) may support techniques for efficiently utilizing available system resources (including duplex gaps), thereby resulting in more efficient use of system resources, reduced system delays and latencies, improved throughput, and an improved user experience.

[0136] Fig.10A block diagram 1000 of a device 1005 supporting SBFD in an FDD band according to one or more aspects of the present disclosure is shown. The device 1005 may be an example of aspects of the device 905 or the network entity 105 as described herein. The device 1005 may include a receiver 1010, a transmitter 1015, and a communication manager 1020. The device 1005 may also include a processor. Each of these components may communicate with each other (e.g., via one or more buses).

[0137] The receiver 1010 may provide means for obtaining (e.g., receiving, determining, identifying) information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack), such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). The information may be passed to other components of the device 1005. In some examples, the receiver 1010 may support obtaining information by receiving signals via one or more antennas. Additionally or alternatively, the receiver 1010 may support obtaining information by receiving signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof.

[0138] The transmitter 1015 may provide a means for outputting (e.g., sending, providing, conveying, transmitting) information generated by other components of the device 1005. For example, the transmitter 1015 may output information associated with various channels (e.g., control channels, data channels, information channels, channels associated with a protocol stack) such as user data, control information, or any combination thereof (e.g., I / Q samples, symbols, packets, protocol data units, service data units). In some examples, the transmitter 1015 may support outputting information by sending signals via one or more antennas. Additionally or alternatively, the transmitter 1015 may support outputting information by sending signals via one or more wired (e.g., electrical, optical) interfaces, wireless interfaces, or any combination thereof. In some examples, the transmitter 1015 and the receiver 1010 may be co-located in a transceiver, which may include a modem or be coupled to a modem.

[0139] The device 1005 or its various components may be examples of components for performing various aspects of SBFD in the FDD band as described herein. For example, the communication manager 1020 may include a channel selection manager 1025, a duplex rule manager 1030, an SBFD communication manager 1035, or any combination thereof. The communication manager 1020 may be an example of various aspects of the communication manager 920 as described herein. In some examples, the communication manager 1020 or its various components may be configured to use or otherwise cooperate with the receiver 1010, the transmitter 1015, or both to perform various operations (e.g., receive, obtain, monitor, output, send). For example, the communication manager 1020 may receive information from the receiver 1010, transmit information to the transmitter 1015, or be integrated with the receiver 1010, the transmitter 1015, or both to obtain information, output information, or perform various other operations as described herein.

[0140] According to examples as disclosed herein, the communication manager 1020 may support wireless communication at a network entity. The channel selection manager 1025 may be configured to or otherwise support components for selecting a duplex gap, the duplex gap being located between a set of multiple uplink channels in a first portion of a full duplex frequency band and a set of multiple downlink channels in a second portion of the full duplex frequency band, the duplex gap comprising one or more unoccupied frequency resources located between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels. The duplex rule manager 1030 may be configured to or otherwise support components for determining one or more rules for SBFD signaling communicated to one or more user equipments (UEs) via the duplex gap. The SBFD communication manager 1035 may be configured to or otherwise support components for performing wireless communication with one or more UEs via the duplex gap according to the SBFD mode and based on the one or more rules.

[0141] Fig.11A block diagram 1100 of a communication manager 1120 supporting SBFD in an FDD band according to one or more aspects of the present disclosure is shown. The communication manager 1120 may be an example of aspects of the communication manager 920, the communication manager 1020, or both as described herein. The communication manager 1120 or its various components may be examples of components for performing aspects of SBFD in an FDD band as described herein. For example, the communication manager 1120 may include a channel selection manager 1125, a duplex rule manager 1130, a SBFD communication manager 1135, a block channel manager 1140, a transmit threshold manager 1145, a guard band manager 1150, or any combination thereof. Each of these components may communicate with each other directly or indirectly (e.g., via one or more buses), which communication may include communication within a protocol layer of a protocol stack, communication associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack, within a device, component, or virtualized component associated with the network entity 105, between devices, components, or virtualized components associated with the network entity 105), or any combination thereof.

[0142] According to examples as disclosed herein, the communication manager 1120 may support wireless communication at a network entity. The channel selection manager 1125 may be configured to or otherwise support components for selecting a duplex gap, the duplex gap being located between a set of multiple uplink channels in a first portion of a full duplex frequency band and a set of multiple downlink channels in a second portion of the full duplex frequency band, the duplex gap comprising one or more unoccupied frequency resources located between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels. The duplex rule manager 1130 may be configured to or otherwise support components for determining one or more rules for SBFD signaling communicated to one or more user equipments (UEs) via the duplex gap. The SBFD communication manager 1135 may be configured to or otherwise support components for performing wireless communication with one or more UEs via the duplex gap according to the SBFD mode and based on the one or more rules.

[0143] In some examples, the block channel manager 1140 may be configured to or otherwise support components for selecting a block channel associated with a first operator, the block channel comprising a first uplink channel in the set of multiple uplink channels, a first downlink channel in the set of multiple downlink channels, and a duplex gap, wherein performing wireless communication via at least the duplex gap includes performing wireless communication via the block channel.

[0144] In some examples, to support performing wireless communications, the SBFD communication manager 1135 may be configured or otherwise support components for sending downlink signaling via a duplex gap that includes a second downlink channel that is a block channel according to one or more rules, wherein the first uplink channel is adjacent to the duplex gap.

[0145] In some examples, to support performing wireless communications, the SBFD communication manager 1135 may be configured or otherwise support components for receiving uplink signaling via a duplex gap that includes a second uplink channel of a block channel according to one or more rules, wherein the first downlink channel is adjacent to the duplex gap.

[0146] In some examples, to support performing wireless communications, transmit threshold manager 1145 may be configured or otherwise support components for performing wireless communications based on transmit thresholds.

[0147] In some examples, guard band manager 1150 can be configured or otherwise support components for avoiding wireless communications via a guard band located in a portion of a duplex gap.

[0148] In some examples, the block channel manager 1140 may be configured to or otherwise support components for selecting a block channel associated with a first operator, the block channel comprising a first portion of a duplex slot allocated for uplink signaling and a second portion of a duplex slot allocated for downlink signaling, wherein performing wireless communication via at least the duplex slot includes performing wireless communication via the block channel.

[0149] In some examples, the first portion of the duplex gap is adjacent to a first uplink channel in the set of multiple uplink channels that is associated with the second operator according to one or more rules. In some examples, the second portion of the duplex gap is adjacent to a first downlink channel in the set of multiple downlink channels that is associated with a third operator according to one or more rules.

[0150] In some examples, guard band manager 1150 can be configured or otherwise support components for avoiding wireless communications via a guard band located between a first portion of a duplex gap and a second portion of a duplex gap.

[0151] In some examples, the block channel manager 1140 may be configured to or otherwise support components for selecting a block channel associated with a first operator, the block channel comprising a first portion of a duplex gap allocated for uplink signaling and a second portion of a duplex gap allocated for downlink signaling, wherein performing wireless communication via at least the duplex gap comprises performing wireless communication via the first portion of the duplex gap or the second portion of the duplex gap based on one or more rules.

[0152] In some examples, to support performing wireless communications, the SBFD communications manager 1135 may be configured or otherwise support components for performing downlink signaling via a second portion of the duplex gap, wherein the second portion of the duplex gap is adjacent to a first downlink channel associated with the first operator in the set of multiple downlink channels, and wherein the first portion of the duplex gap is adjacent to a first uplink channel associated with the second operator in the set of multiple uplink channels. In some examples, to support performing wireless communications, the SBFD communications manager 1135 may be configured or otherwise support components for avoiding performing uplink signaling via the first portion of the duplex gap according to one or more rules.

[0153] In some examples, to support performing wireless communications, the SBFD communications manager 1135 may be configured or otherwise support components for performing uplink signaling via a first portion of the duplex gap, wherein the first portion of the duplex gap is adjacent to a first uplink channel associated with a first operator in the set of multiple uplink channels, and wherein a second portion of the duplex gap is adjacent to a first downlink channel associated with a second operator in the set of multiple downlink channels. In some examples, to support performing wireless communications, the SBFD communications manager 1135 may be configured or otherwise support components for avoiding performing downlink signaling via the second portion of the duplex gap according to one or more rules.

[0154] Fig.12A diagram of a system 1200 including a device 1205 supporting SBFD in an FDD band according to one or more aspects of the present disclosure is shown. The device 1205 may be an example of a device 905, a device 1005, or a network entity 105 as described herein, or include components thereof. The device 1205 may communicate with one or more network entities 105, one or more UEs 115, or any combination thereof, which communication may include communication through one or more wired interfaces, through one or more wireless interfaces, or any combination thereof. The device 1205 may include components that support output and acquisition of communications, such as a communication manager 1220, a transceiver 1210, an antenna 1215, a memory 1225, a code 1230, and a processor 1235. These components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more buses (e.g., bus 1240).

[0155] As described herein, the transceiver 1210 may support bidirectional communication via a wired link, a wireless link, or both. In some examples, the transceiver 1210 may include a wired transceiver and may communicate bidirectionally with another wired transceiver. Additionally or alternatively, in some examples, the transceiver 1210 may include a wireless transceiver and may communicate bidirectionally with another wireless transceiver. In some examples, the device 1205 may include one or more antennas 1215, which may be capable of (e.g., concurrently) sending or receiving wireless transmissions. The transceiver 1210 may also include a modem for modulating a signal, for providing a modulated signal for transmission (e.g., via one or more antennas 1215, via a wired transmitter), for receiving a modulated signal (e.g., from one or more antennas 1215, from a wired receiver), and for demodulating a signal. In some implementations, the transceiver 1210 may include one or more interfaces, such as one or more interfaces coupled to one or more antennas 1215 configured to support various receiving or obtaining operations, or one or more interfaces coupled to one or more antennas 1215 configured to support various sending or outputting operations, or a combination thereof. In some implementations, the transceiver 1210 may include or be configured to be coupled to one or more processors or memory components that are operable to: perform or support operations based on received or obtained information or signals; or generate information or other signals for transmission or other output, or any combination thereof. In some implementations, the transceiver 1210, or the transceiver 1210 and one or more antennas 1215, or the transceiver 1210 and one or more antennas 1215 and one or more processors or memory components (e.g., processor 1235, or memory 1225, or both) may be included in a chip or chip assembly installed in the device 1205. In some examples, the transceiver may be operable to support communications via one or more communication links (eg, communication link 125, backhaul communication link 120, midhaul communication link 162, fronthaul communication link 168).

[0156] Memory 1225 may include RAM and ROM. Memory 1225 may store computer-readable, computer-executable code 1230 including instructions that, when executed by processor 1235, cause device 1205 to perform various functions described herein. Code 1230 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, code 1230 may not be directly executable by processor 1235, but may (e.g., when compiled and executed) cause a computer to perform the functions described herein. In some cases, memory 1225 may also include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0157] The processor 1235 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA, a microcontroller, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1235 may be configured to operate a memory array using a memory controller. In some other cases, the memory controller may be integrated into the processor 1235. The processor 1235 may be configured to execute computer-readable instructions stored in a memory (e.g., a memory 1225) to enable the device 1205 to perform various functions (e.g., functions or tasks supporting SBFD in an FDD band). For example, the device 1205 or a component of the device 1205 may include a processor 1235 and a memory 1225 coupled to the processor 1235, the processor 1235 and the memory 1225 being configured to perform various functions described herein. The processor 1235 may be an example of a cloud computing platform (e.g., one or more physical nodes and supporting software such as an operating system, a virtual machine, or a container instance), which may host functions for performing functions of the device 1205 (e.g., by executing code 1230). The processor 1235 may be any one or more suitable processors capable of executing scripts or instructions of one or more software programs stored in the device 1205 (such as in the memory 1225). In some specific implementations, the processor 1235 may be a component of a processing system. A processing system may generally refer to a system or a series of machines or components that receive inputs and process these inputs to produce a set of outputs (which may be delivered to, for example, other systems or components of the device 1205). For example, the processing system of the device 1205 may refer to a system including various other components or subcomponents of the device 1205, such as the processor 1235, or the transceiver 1210, or the communication manager 1220, or other components or combinations of components of the device 1205. The processing system of the device 1205 may interface with other components of the device 1205, and may process information (such as inputs or signals) received from other components or output information to other components. For example, a chip or modem of the device 1205 may include a processing system and one or more interfaces for outputting information or for obtaining information or both. The one or more interfaces may be implemented as or otherwise include a first interface configured to output information and a second interface configured to obtain information, or the same interface configured to output information and obtain information, as well as other specific implementations. In some specific implementations, the one or more interfaces may refer to an interface between a processing system of a chip or modem and a transmitter, so that the device 1205 can send information output from the chip or modem.Additionally or alternatively, in some implementations, the one or more interfaces may refer to an interface between a processing system of a chip or modem and a receiver, such that the device 1205 may obtain information or signal input, and the information may be passed to the processing system. One of ordinary skill in the art will readily recognize that the first interface may also obtain information or signal input, and the second interface may also output information or signal output.

[0158] In some examples, bus 1240 may support communications of a protocol layer (e.g., within a protocol layer) of a protocol stack. In some examples, bus 1240 may support communications associated with a logical channel of a protocol stack (e.g., between protocol layers of a protocol stack), which may include communications performed within a component of device 1205, or communications performed between different components of device 1205 that may be co-located or may be located in different locations (e.g., where device 1205 may refer to a system in which one or more of communication manager 1220, transceiver 1210, memory 1225, code 1230, and processor 1235 may be located in one of the different components or divided between the different components).

[0159] In some examples, the communication manager 1220 may manage aspects of communications with the core network 130 (e.g., via one or more wired or wireless backhaul links). For example, the communication manager 1220 may manage the delivery of data communications for client devices, such as one or more UEs 115. In some examples, the communication manager 1220 may manage communications with other network entities 105 and may include a controller or scheduler for controlling communications with the UEs 115 in coordination with the other network entities 105. In some examples, the communication manager 1220 may support an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between network entities 105.

[0160] According to examples as disclosed herein, the communication manager 1220 may support wireless communication at a network entity. For example, the communication manager 1220 may be configured to or otherwise support a component for selecting a duplex gap, the duplex gap being located between a group of multiple uplink channels in a first portion of a full duplex frequency band and a group of multiple downlink channels in a second portion of the full duplex frequency band, the duplex gap comprising one or more unoccupied frequency resources located between a group of multiple frequency resources associated with the group of multiple uplink channels and between a group of multiple frequency resources associated with the group of multiple downlink channels. The communication manager 1220 may be configured to or otherwise support a component for determining one or more rules for SBFD signaling communicated to one or more user equipment (UE) via the duplex gap. The communication manager 1220 may be configured to or otherwise support a component for performing wireless communication with one or more UEs via the duplex gap according to the SBFD mode and based on the one or more rules.

[0161] By including or configuring a communications manager 1220 according to examples as described herein, the device 1205 may support techniques for efficiently utilizing available system resources, including duplex gaps, resulting in more efficient use of system resources, reduced system delays and latency, improved throughput, and an improved user experience.

[0162] In some examples, the communication manager 1220 may be configured to perform various operations (e.g., receive, obtain, monitor, output, transmit) using or otherwise cooperating with the transceiver 1210, one or more antennas 1215 (e.g., where applicable), or any combination thereof. Although the communication manager 1220 is illustrated as a separate component, in some examples, one or more functions described with reference to the communication manager 1220 may be supported or performed by the transceiver 1210, the processor 1235, the memory 1225, the code 1230, or any combination thereof. For example, the code 1230 may include instructions that are executable by the processor 1235 to cause the device 1205 to perform various aspects of SBFD in the FDD band as described herein, or the processor 1235 and the memory 1225 may be otherwise configured to perform or support such operations.

[0163] Fig.13 1 is a flowchart illustrating a method 1300 for supporting SBFD in an FDD band according to one or more aspects of the present disclosure. The operations of the method 1300 may be implemented by a network entity or a component thereof as described herein. For example, the operations of the method 1300 may be implemented by a network entity or a component thereof as described in reference to Figures 1 to 12The described network entity performs. In some examples, the network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.

[0164] At 1305, the method may include selecting a duplex gap located between a set of multiple uplink channels in a first portion of a full duplex frequency band and between a set of multiple downlink channels in a second portion of the full duplex frequency band, the duplex gap including one or more unoccupied frequency resources located between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels. The operations of 1305 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1305 may be performed as described in reference to Fig.11 The described channel selection manager 1125 is executed.

[0165] At 1310, the method may include determining one or more rules for SBFD signaling communicated to one or more user equipment (UE) via a duplex gap. The operations of 1310 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1310 may be performed as described in reference to Fig.11 The duplex rules manager 1130 described herein is executed.

[0166] At 1315, the method may include performing wireless communications with one or more UEs via a duplex gap according to the SBFD mode and based on one or more rules. The operations of 1315 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1315 may be performed as described in reference Fig.11 The described SBFD communication manager 1135 is executed.

[0167] Fig.14 1400 is a flowchart illustrating a method 1400 for supporting SBFD in an FDD band according to one or more aspects of the present disclosure. The operations of the method 1400 may be implemented by a network entity or a component thereof as described herein. For example, the operations of the method 1400 may be implemented by a network entity or a component thereof as described in reference to Figures 1 to 12 The described network entity performs. In some examples, the network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.

[0168] At 1405, the method may include selecting a duplex gap located between a set of multiple uplink channels in a first portion of a full duplex frequency band and between a set of multiple downlink channels in a second portion of the full duplex frequency band, the duplex gap including one or more unoccupied frequency resources located between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels. The operations of 1405 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1405 may be performed as described in reference to Fig.11 The described channel selection manager 1125 is executed.

[0169] At 1410, the method may include determining one or more rules for SBFD signaling communicated to one or more user equipment (UE) via a duplex gap. The operations of 1410 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1410 may be performed as described in reference to Fig.11 The duplex rules manager 1130 described herein is executed.

[0170] At 1415, the method may include selecting a block channel associated with a first operator, the block channel including a first uplink channel in the set of multiple uplink channels, a first downlink channel in the set of multiple downlink channels, and a duplex gap. The operations of 1415 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1415 may be performed as described in reference to Fig.11 The described blocks are executed by the channel manager 1140.

[0171] At 1420, the method may include performing wireless communications with one or more UEs via a block channel associated with a first operator according to an SBFD mode and based at least in part on one or more rules. The operations of 1420 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1420 may be performed as described in reference Fig.11 The described SBFD communication manager 1135 is executed.

[0172] Fig.15 1 is a flowchart illustrating a method 1500 for supporting SBFD in an FDD band according to one or more aspects of the present disclosure. The operations of the method 1500 may be implemented by a network entity or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a network entity or a component thereof as described in reference to Figures 1 to 12 The described network entity performs. In some examples, the network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.

[0173] At 1505, the method may include selecting a duplex gap located between a set of multiple uplink channels in a first portion of a full duplex frequency band and between a set of multiple downlink channels in a second portion of the full duplex frequency band, the duplex gap including one or more unoccupied frequency resources located between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels. The operations of 1505 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1505 may be performed as described in reference to Fig.11 The described channel selection manager 1125 is executed.

[0174] At 1510, the method may include determining one or more rules for SBFD signaling communicated to one or more user equipment (UE) via a duplex gap. The operations of 1510 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1510 may be performed as described in reference to Fig.11 The duplex rules manager 1130 described herein is executed.

[0175] At 1515, the method may include selecting a block channel associated with a first operator, the block channel including a first portion of a duplex slot allocated for uplink signaling and a second portion of a duplex slot allocated for downlink signaling. The operations of 1515 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1515 may be performed as described in reference to Fig.11 The described blocks are executed by the channel manager 1140.

[0176] At 1520, the method may include performing wireless communications with one or more UEs via a block channel according to the SBFD mode and based at least in part on one or more rules. The operations of 1520 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1520 may be performed as described in reference Fig.11 The described SBFD communication manager 1135 is executed.

[0177] Fig.16 1 is a flowchart illustrating a method 1600 for supporting SBFD in an FDD band according to one or more aspects of the present disclosure. The operations of the method 1600 may be implemented by a network entity or a component thereof as described herein. For example, the operations of the method 1600 may be implemented by a network entity or a component thereof as described in reference to Figures 1 to 12 The described network entity performs. In some examples, the network entity may execute a set of instructions to control the functional elements of the network entity to perform the described functions. Additionally or alternatively, the network entity may use dedicated hardware to perform various aspects of the described functions.

[0178] At 1605, the method may include selecting a duplex gap located between a set of multiple uplink channels in a first portion of a full-duplex frequency band and between a set of multiple downlink channels in a second portion of the full-duplex frequency band, the duplex gap including one or more unoccupied frequency resources located between a set of multiple frequency resources associated with the set of multiple uplink channels and between a set of multiple frequency resources associated with the set of multiple downlink channels. The operations of 1605 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1605 may be performed as described in reference to Fig.11 The described channel selection manager 1125 is executed.

[0179] At 1610, the method may include determining one or more rules for SBFD signaling communicated to one or more user equipment (UE) via a duplex gap. The operations of 1610 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1610 may be performed as described in reference to Fig.11 The duplex rules manager 1130 described herein is executed.

[0180] At 1615, the method may include selecting a block channel associated with a first operator, the block channel including a first portion of a duplex slot allocated for uplink signaling and a second portion of a duplex slot allocated for downlink signaling. The operations of 1615 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1615 may be performed as described in reference to Fig.11 The described blocks are executed by the channel manager 1140.

[0181] At 1620, the method may include performing wireless communications with one or more UEs via a block channel according to the SBFD mode and based on one or more rules. The operations of 1620 may be performed according to examples as disclosed herein. In some examples, aspects of the operations of 1620 may be performed as described in reference Fig.11 The described SBFD communication manager 1135 is executed.

[0182] The following provides an overview of various aspects of the disclosure:

[0183] Aspect 1: A method for wireless communication at a network entity, the method comprising: selecting a duplex gap, the duplex gap being located between a plurality of uplink channels in a first portion of a full-duplex frequency band and between a plurality of downlink channels in a second portion of the full-duplex frequency band, the duplex gap comprising one or more unoccupied frequency resources located between a plurality of frequency resources associated with the plurality of uplink channels and between a plurality of frequency resources associated with the plurality of downlink channels; determining one or more rules for sub-band full-duplex (SBFD) signaling communicated to one or more user equipment (UE) via the duplex gap; and performing wireless communication with the one or more UEs via the duplex gap according to a SBFD mode and based at least in part on the one or more rules.

[0184] Aspect 2: According to the method described in Aspect 1, the method further includes: selecting a block channel associated with a first operator, the block channel comprising a first uplink channel among the multiple uplink channels, a first downlink channel among the multiple downlink channels, and the duplex gap, wherein performing the wireless communication via at least the duplex gap comprises performing the wireless communication via the block channel.

[0185] Aspect 3: A method according to aspect 2, wherein performing the wireless communication includes: sending downlink signaling via the duplex gap, the duplex gap includes a second downlink channel of the block channel according to the one or more rules, and wherein the first uplink channel is adjacent to the duplex gap.

[0186] Aspect 4: A method according to any one of Aspects 2 to 3, wherein performing the wireless communication includes: receiving uplink signaling via the duplex gap, the duplex gap includes a second uplink channel of the block channel according to the one or more rules, and wherein the first downlink channel is adjacent to the duplex gap.

[0187] Aspect 5: The method according to any one of aspects 2 to 4, wherein performing the wireless communication comprises: performing the wireless communication according to a transmission threshold.

[0188] Aspect 6: The method according to any one of aspects 2 to 5, further comprising: avoiding wireless communication via a guard band located in a portion of the duplex gap.

[0189] Aspect 7: According to the method described in any one of Aspects 1 to 6, the method further includes: selecting a block channel associated with a first operator, the block channel comprising a first portion of the duplex gap allocated for uplink signaling and a second portion of the duplex gap allocated for downlink signaling, wherein performing the wireless communication via at least the duplex gap comprises performing the wireless communication via the block channel.

[0190] Aspect 8: A method according to Aspect 7, wherein the first portion of the duplex gap is adjacent to a first uplink channel among the multiple uplink channels that is associated with a second operator according to the one or more rules, and the second portion of the duplex gap is adjacent to a first downlink channel among the multiple downlink channels that is associated with a third operator according to the one or more rules.

[0191] Aspect 9: The method according to any one of aspects 7 to 8, further comprising: avoiding wireless communication via a guard band located between the first portion of the duplex gap and the second portion of the duplex gap.

[0192] Aspect 10: According to the method described in any one of Aspects 1 to 9, the method further includes: selecting a block channel associated with a first operator, the block channel comprising a first portion of the duplex gap allocated for uplink signaling and a second portion of the duplex gap allocated for downlink signaling, wherein performing the wireless communication via at least the duplex gap comprises performing the wireless communication via the first portion of the duplex gap or the second portion of the duplex gap at least in part based on the one or more rules.

[0193] Aspect 11: A method according to Aspect 10, wherein performing the wireless communication includes: performing downlink signaling via the second portion of the duplex gap, wherein the second portion of the duplex gap is adjacent to a first downlink channel associated with the first operator among the multiple downlink channels, and wherein the first portion of the duplex gap is adjacent to a first uplink channel associated with the second operator among the multiple uplink channels; and avoiding performing uplink signaling via the first portion of the duplex gap according to the one or more rules.

[0194] Aspect 12: A method according to any one of Aspects 10 to 11, wherein performing the wireless communication includes: performing uplink signaling via the first portion of the duplex gap, wherein the first portion of the duplex gap is adjacent to a first uplink channel associated with the first operator among the multiple uplink channels, and wherein the second portion of the duplex gap is adjacent to a first downlink channel associated with a second operator among the multiple downlink channels; and avoiding performing downlink signaling via the second portion of the duplex gap according to the one or more rules.

[0195] Aspect 13: An apparatus for performing wireless communications at a network entity, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method according to any one of Aspects 1 to 12.

[0196] Aspect 14: An apparatus for wireless communication at a network entity, the apparatus comprising: at least one component for performing the method according to any one of aspects 1 to 12.

[0197] Aspect 15: A non-transitory computer-readable medium storing code for wireless communication at a network entity, the code comprising instructions executable by a processor to perform the method according to any one of aspects 1 to 12.

[0198] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and that other implementations are possible. In addition, aspects of two or more of the methods may be combined.

[0199] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the techniques described may be applicable to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0200] The information and signals described herein may be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the specification may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.

[0201] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed using a general purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in an alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0202] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. When implemented using software executed by a processor, the functions may be stored as one or more instructions or codes of a computer-readable medium or sent using one or more instructions or codes of a computer-readable medium. Other examples and specific implementations are within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these items. Features that implement the functions may also be physically located at different locations, including being distributed so that the various parts of the functions are implemented at different physical locations.

[0203] Computer-readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that promotes computer program to be transmitted from one position to another position.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.By way of example and not limitation, non-transient computer-readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage device, disk storage device or other magnetic storage device, or can be used for carrying or storing desired program code parts and any other non-transient medium that can be accessed by general or special-purpose computer or general or special-purpose processor in the form of instruction or data structure.Moreover, any connection is appropriately referred to as computer-readable medium.For example, if software is sent from website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of computer-readable medium. Disks and optical disks as used herein include CDs, laser optical disks, optical optical disks, digital versatile disks (DVDs), floppy disks, and Blu-ray disks. Disks can reproduce data magnetically, and optical disks can reproduce data optically using lasers. Combinations of the above are also included within the scope of computer-readable media.

[0204] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items followed by a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Moreover, as used herein, the phrase "based on" should not be interpreted as a reference to a closed set of conditions. For example, an example step described as "based on condition A" can be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0205] The term "determining" encompasses a variety of actions, and thus, "determining" may include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, database or other data structure), ascertaining, and the like. Also, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data stored in a memory), etc. Also, "determining" may include parsing, retrieving, selecting, choosing, establishing, and other such similar actions.

[0206] In the drawings, similar components or features may have the same reference label. In addition, various components of the same type may be distinguished by following the reference label with a dash and a second label to distinguish between the similar components. If only the first reference label is used in the specification, the description may apply to any of the similar components having the same first reference label, regardless of the second or other subsequent reference labels.

[0207] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration," rather than "preferred" or "advantageous over other examples." The specific embodiments include specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some cases, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0208] The description herein is provided to enable one of ordinary skill in the art to implement or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a network entity, the method comprising: selecting a duplex gap located between a plurality of uplink channels in a first portion of a full-duplex frequency band and between a plurality of downlink channels in a second portion of the full-duplex frequency band, the duplex gap comprising one or more unoccupied frequency resources located between a plurality of frequency resources associated with the plurality of uplink channels and between a plurality of frequency resources associated with the plurality of downlink channels; determining one or more rules for sub-band full-duplex signaling communicated to one or more user equipment (UE) via the duplex gap; as well as Wireless communications are performed with the one or more UEs via the duplex gap in accordance with a sub-band full-duplex mode and based at least in part on the one or more rules.

2. The method according to claim 1, further comprising: Selecting a block channel associated with a first operator, the block channel comprising a first uplink channel of the plurality of uplink channels, a first downlink channel of the plurality of downlink channels, and the duplex gap, wherein performing the wireless communication via at least the duplex gap comprises performing the wireless communication via the block channel.

3. The method of claim 2, wherein performing the wireless communication comprises: Downlink signaling is sent via the duplex gap, the duplex gap comprising a second downlink channel of the block channel according to the one or more rules, wherein the first uplink channel is adjacent to the duplex gap.

4. The method of claim 2, wherein performing the wireless communication comprises: Uplink signaling is received via the duplex gap, the duplex gap comprising a second uplink channel of the block channels according to the one or more rules, wherein the first downlink channel is adjacent to the duplex gap.

5. The method of claim 2, wherein performing the wireless communication comprises: The wireless communication is performed according to a transmission threshold.

6. The method according to claim 2, further comprising: Wireless communication is avoided via a guard band located in a portion of the duplex gap.

7. The method according to claim 1, further comprising: Selecting a block channel associated with a first operator, the block channel comprising a first portion of the duplex slot allocated for uplink signaling and a second portion of the duplex slot allocated for downlink signaling, wherein performing the wireless communication via at least the duplex slot comprises performing the wireless communication via the block channel.

8. The method according to claim 7, wherein: The first portion of the duplex gap is adjacent to a first uplink channel of the plurality of uplink channels that is associated with a second operator according to the one or more rules, and The second portion of the duplex gap is adjacent to a first downlink channel of the plurality of downlink channels that is associated with a third operator according to the one or more rules.

9. The method according to claim 7, further comprising: Wireless communications are avoided via a guard band between the first portion of the duplex gap and the second portion of the duplex gap.

10. The method according to claim 1, further comprising: Selecting a block channel associated with a first operator, the block channel comprising a first portion of the duplex slot allocated for uplink signaling and a second portion of the duplex slot allocated for downlink signaling, wherein performing the wireless communication via at least the duplex slot comprises performing the wireless communication via the first portion of the duplex slot or the second portion of the duplex slot based at least in part on the one or more rules.

11. The method of claim 10, wherein performing the wireless communication comprises: performing downlink signaling via the second portion of the duplex gap, wherein the second portion of the duplex gap is adjacent to a first downlink channel of the plurality of downlink channels associated with the first operator, and wherein the first portion of the duplex gap is adjacent to a first uplink channel of the plurality of uplink channels associated with a second operator; as well as Uplink signaling via the first portion of the duplex gap is avoided according to the one or more rules.

12. The method of claim 10, wherein performing the wireless communication comprises: performing uplink signaling via the first portion of the duplex gap, wherein the first portion of the duplex gap is adjacent to a first uplink channel of the plurality of uplink channels associated with the first operator, and wherein the second portion of the duplex gap is adjacent to a first downlink channel of the plurality of downlink channels associated with a second operator; as well as Downlink signaling via the second portion of the duplex gap is avoided according to the one or more rules.

13. An apparatus for wireless communication at a network entity, the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: selecting a duplex gap located between a plurality of uplink channels in a first portion of a full-duplex frequency band and between a plurality of downlink channels in a second portion of the full-duplex frequency band, the duplex gap comprising one or more unoccupied frequency resources located between a plurality of frequency resources associated with the plurality of uplink channels and between a plurality of frequency resources associated with the plurality of downlink channels; determining one or more rules for sub-band full-duplex signaling communicated to one or more user equipment (UE) via the duplex gap; as well as Wireless communications are performed with the one or more UEs via the duplex gap in accordance with a sub-band full-duplex mode and based at least in part on the one or more rules.

14. The apparatus of claim 13, wherein the instructions are further executable by the processor to cause the apparatus to: Selecting a block channel associated with a first operator, the block channel comprising a first uplink channel of the plurality of uplink channels, a first downlink channel of the plurality of downlink channels, and the duplex gap, wherein performing the wireless communication via at least the duplex gap comprises performing the wireless communication via the block channel.

15. The apparatus of claim 14, wherein the instructions for performing the wireless communication are executable by the processor to cause the apparatus to: Downlink signaling is sent via the duplex gap, the duplex gap comprising a second downlink channel of the block channel according to the one or more rules, wherein the first uplink channel is adjacent to the duplex gap.

16. The apparatus of claim 14, wherein the instructions for performing the wireless communication are executable by the processor to cause the apparatus to: Uplink signaling is received via the duplex gap, the duplex gap comprising a second uplink channel of the block channels according to the one or more rules, wherein the first downlink channel is adjacent to the duplex gap.

17. The apparatus of claim 14, wherein the instructions for performing the wireless communication are executable by the processor to cause the apparatus to: The wireless communication is performed according to a transmission threshold.

18. The apparatus of claim 14, wherein the instructions are further executable by the processor to cause the apparatus to: Wireless communication is avoided via a guard band located in a portion of the duplex gap.

19. The apparatus of claim 13, wherein the instructions are further executable by the processor to cause the apparatus to: Selecting a block channel associated with a first operator, the block channel comprising a first portion of the duplex slot allocated for uplink signaling and a second portion of the duplex slot allocated for downlink signaling, wherein performing the wireless communication via at least the duplex slot comprises performing the wireless communication via the block channel.

20. The apparatus of claim 19, wherein: The first portion of the duplex gap is adjacent to a first uplink channel of the plurality of uplink channels that is associated with a second operator according to the one or more rules, and The second portion of the duplex gap is adjacent to a first downlink channel of the plurality of downlink channels that is associated with a third operator according to the one or more rules.

21. The apparatus of claim 19, wherein the instructions are further executable by the processor to cause the apparatus to: Wireless communications are avoided via a guard band between the first portion of the duplex gap and the second portion of the duplex gap.

22. The apparatus of claim 13, wherein the instructions are further executable by the processor to cause the apparatus to: Selecting a block channel associated with a first operator, the block channel comprising a first portion of the duplex slot allocated for uplink signaling and a second portion of the duplex slot allocated for downlink signaling, wherein performing the wireless communication via at least the duplex slot comprises performing the wireless communication via the first portion of the duplex slot or the second portion of the duplex slot based at least in part on the one or more rules.

23. The apparatus of claim 22, wherein the instructions for performing the wireless communication are executable by the processor to cause the apparatus to: performing downlink signaling via the second portion of the duplex gap, wherein the second portion of the duplex gap is adjacent to a first downlink channel of the plurality of downlink channels associated with the first operator, and wherein the first portion of the duplex gap is adjacent to a first uplink channel of the plurality of uplink channels associated with a second operator; and Uplink signaling via the first portion of the duplex gap is avoided according to the one or more rules.

24. The apparatus of claim 22, wherein the instructions for performing the wireless communication are executable by the processor to cause the apparatus to: performing uplink signaling via the first portion of the duplex gap, wherein the first portion of the duplex gap is adjacent to a first uplink channel of the plurality of uplink channels associated with the first operator, and wherein the second portion of the duplex gap is adjacent to a first downlink channel of the plurality of downlink channels associated with a second operator; and Downlink signaling via the second portion of the duplex gap is avoided according to the one or more rules.

25. A non-transitory computer readable medium storing code for wireless communication at a network entity, the code comprising instructions executable by a processor to: selecting a duplex gap located between a plurality of uplink channels in a first portion of a full-duplex frequency band and between a plurality of downlink channels in a second portion of the full-duplex frequency band, the duplex gap comprising one or more unoccupied frequency resources located between a plurality of frequency resources associated with the plurality of uplink channels and between a plurality of frequency resources associated with the plurality of downlink channels; determining one or more rules for sub-band full-duplex signaling communicated to one or more user equipment (UE) via the duplex gap; as well as Wireless communications are performed with the one or more UEs via the duplex gap in accordance with a sub-band full-duplex mode and based at least in part on the one or more rules.

26. The non-transitory computer readable medium of claim 25, wherein the instructions are further executable by the processor to: Selecting a block channel associated with a first operator, the block channel comprising a first uplink channel of the plurality of uplink channels, a first downlink channel of the plurality of downlink channels, and the duplex gap, wherein performing the wireless communication via at least the duplex gap comprises performing the wireless communication via the block channel.

27. The non-transitory computer readable medium of claim 26, wherein the instructions for performing the wireless communication are executable by the processor to: Downlink signaling is sent via the duplex gap, the duplex gap comprising a second downlink channel of the block channel according to the one or more rules, wherein the first uplink channel is adjacent to the duplex gap.

28. The non-transitory computer readable medium of claim 26, wherein the instructions for performing the wireless communication are executable by the processor to: Uplink signaling is received via the duplex gap, the duplex gap comprising a second uplink channel of the block channels according to the one or more rules, wherein the first downlink channel is adjacent to the duplex gap.

29. The non-transitory computer readable medium of claim 25, wherein the instructions are further executable by the processor to: Selecting a block channel associated with a first operator, the block channel comprising a first portion of the duplex slot allocated for uplink signaling and a second portion of the duplex slot allocated for downlink signaling, wherein performing the wireless communication via at least the duplex slot comprises performing the wireless communication via the block channel.

30. An apparatus for wireless communication at a network entity, the apparatus comprising: means for selecting a duplex gap located between a plurality of uplink channels in a first portion of a full duplex frequency band and between a plurality of downlink channels in a second portion of the full duplex frequency band, the duplex gap comprising one or more unoccupied frequency resources located between a plurality of frequency resources associated with the plurality of uplink channels and between a plurality of frequency resources associated with the plurality of downlink channels; means for determining one or more rules for sub-band full-duplex signaling communicated to one or more user equipment (UE) via the duplex gap; and Means for performing wireless communications with the one or more UEs via the duplex gap in accordance with a sub-band full-duplex mode and based at least in part on the one or more rules.

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